Lansoprazole

6 ADVERSE REACTIONS The following serious adverse reactions are described below and elsewhere in labeling: • Acute Tubulointerstitial Nephritis [see Warnings and Precautions ( 5.2 )] • Clostridium difficile -Associated Diarrhea [see Warnings and Precautions (5.3 )] • Bone Fracture [see Warnings and Precautions ( 5.4 )] • Severe Cutaneous Adverse Reactions [see Warnings and Precautions ( 5.5 ) ] • Cutaneous and Systemic Lupus Erythematosus [see Warnings and Precautions ( 5.6 )] • Cyanocobalamin (Vitamin B12) Deficiency [see Warnings and Precautions ( 5.7) ] • Hypomagnesemia and Mineral Metabolism [see Warnings and Precautions ( 5.8 )] • Fundic Gland Polyps [see Warnings and Precautions ( 5.12 ) ]. Most commonly reported adverse reactions (≥1%): diarrhea, abdominal pain, nausea and constipation. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Dr. Reddy's Laboratories, Inc., at 1-888-375-3784 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. Worldwide, over 10,000 patients have been treated with lansoprazole in Phase 2 or Phase 3 clinical trials involving various dosages and durations of treatment. In general, lansoprazole treatment has been well-tolerated in both short-term and long-term trials. The following adverse reactions were reported by the treating physician to have a possible or probable relationship to drug in 1% or more of lansoprazole-treated patients and occurred at a greater rate in lansoprazole delayed-release orally disintegrating tablets-treated patients than placebo-treated patients in Table 1. Table 1: Incidence of Possibly or Probably Treatment-Related Adverse Reactions in Short-Term, Placebo-Controlled Lansoprazole Studies Body System/ Adverse Reaction Lansoprazole (N= 2768) % Placebo (N= 1023) % Body as a Whole Abdominal Pain 2.1 1.2 Digestive System Constipation Diarrhea Nausea 1.0 3.8 1.3 0.4 2.3 1.2 Headache was also seen at greater than 1% incidence but was more common on placebo. The incidence of diarrhea was similar between patients who received placebo and patients who received 15 and 30 mg of lansoprazole, but higher in the patients who received 60 mg of lansoprazole (2.9, 1.4, 4.2, and 7.4%, respectively). The most commonly reported possibly or probably treatment-related adverse event during maintenance therapy was diarrhea. In the risk reduction study of lansoprazole for NSAID-associated gastric ulcers, the incidence of diarrhea for patients treated with lansoprazole, misoprostol, and placebo was 5, 22, and 3%, respectively. Another study for the same indication, where patients took either a COX-2 inhibitor or lansoprazole and naproxen, demonstrated that the safety profile was similar to the prior study. Additional reactions from this study not previously observed in other clinical trials with lansoprazole included contusion, duodenitis, epigastric discomfort, esophageal disorder, fatigue, hunger, hiatal hernia, hoarseness, impaired gastric emptying, metaplasia, and renal impairment. Additional adverse experiences occurring in less than 1% of patients or subjects who received lansoprazole in domestic trials are shown below: Body as a Whole – abdomen enlarged, allergic reaction, asthenia, back pain, candidiasis, carcinoma, chest pain (not otherwise specified), chills, edema, fever, flu syndrome, halitosis, infection (not otherwise specified), malaise, neck pain, neck rigidity, pain, pelvic pain Cardiovascular System - angina, arrhythmia, bradycardia, cerebrovascular accident/cerebral infarction, hypertension/hypotension, migraine, myocardial infarction, palpitations, shock (circulatory failure), syncope, tachycardia, vasodilation Digestive System – abnormal stools, anorexia, bezoar, cardiospasm, cholelithiasis, colitis, dry mouth, dyspepsia, dysphagia, enteritis, eructation, esophageal stenosis, esophageal ulcer, esophagitis, fecal discoloration, flatulence, gastric nodules/fundic gland polyps, gastritis, gastroenteritis, gastrointestinal anomaly, gastrointestinal disorder, gastrointestinal hemorrhage, glossitis, gum hemorrhage, hematemesis, increased appetite, increased salivation, melena, mouth ulceration, nausea and vomiting, nausea and vomiting and diarrhea, gastrointestinal moniliasis, rectal disorder, rectal hemorrhage, stomatitis, tenesmus, thirst, tongue disorder, ulcerative colitis, ulcerative stomatitis Endocrine System - diabetes mellitus, goiter, hypothyroidism Hemic and Lymphatic System - anemia, hemolysis, lymphadenopathy Metabolism and Nutritional Disorders - avitaminosis, gout, dehydration, hyperglycemia/hypoglycemia, peripheral edema, weight gain/loss Musculoskeletal System - arthralgia, arthritis, bone disorder, joint disorder, leg cramps, musculoskeletal pain, myalgia, myasthenia, ptosis, synovitis Nervous System – abnormal dreams, agitation, amnesia, anxiety, apathy, confusion, convulsion, dementia, depersonalization, depression, diplopia, dizziness, emotional lability, hallucinations, hemiplegia, hostility aggravated, hyperkinesia, hypertonia, hypesthesia, insomnia, libido decreased/increased, nervousness, neurosis, paresthesia, sleep disorder, somnolence, thinking abnormality, tremor, vertigo Respiratory System - asthma, bronchitis, cough increased, dyspnea, epistaxis, hemoptysis, hiccup, laryngeal neoplasia, lung fibrosis, pharyngitis, pleural disorder, pneumonia, respiratory disorder, upper respiratory inflammation/infection, rhinitis, sinusitis, stridor Skin and Appendages - acne, alopecia, contact dermatitis, dry skin, fixed eruption, hair disorder, maculopapular rash, nail disorder, pruritus, rash, skin carcinoma, skin disorder, sweating, urticaria Special Senses – abnormal vision, amblyopia, blepharitis, blurred vision, cataract, conjunctivitis, deafness, dry eyes, ear/eye disorder, eye pain, glaucoma, otitis media, parosmia, photophobia, retinal degeneration/disorder, taste loss, taste perversion, tinnitus, visual field defect Urogenital System - abnormal menses, breast enlargement, breast pain, breast tenderness, dysmenorrhea, dysuria, gynecomastia, impotence, kidney calculus, kidney pain, leukorrhea, menorrhagia, menstrual disorder, penis disorder, polyuria, testis disorder, urethral pain, urinary frequency, urinary retention, urinary tract infection, urinary urgency, urination impaired, vaginitis. 6.2 Postmarketing Experience Additional adverse experiences have been reported since lansoprazole delayed-release orally disintegrating tablets have been marketed. The majority of these cases are foreign-sourced and a relationship to lansoprazole delayed-release orally disintegrating tablets has not been established. Because these reactions were reported voluntarily from a population of unknown size, estimates of frequency cannot be made. These events are listed below by COSTART body system. Body as a Whole – anaphylactic/anaphylactoid reactions, systemic lupus erythematosus; Digestive System - hepatotoxicity, pancreatitis, vomiting; Hemic and Lymphatic System - agranulocytosis, aplastic anemia, hemolytic anemia, leukopenia, neutropenia, pancytopenia, thrombocytopenia, and thrombotic thrombocytopenic purpura; Infections and Infestations – Clostridium difficile -associated diarrhea; Metabolism and Nutritional Disorders – hypomagnesemia; ,hypocalcemia, hypokalemia, hyponatremia; Musculoskeletal System - bone fracture, myositis; Skin and Appendages – severe dermatologic reactions including erythema multiforme, SJS/TEN (some fatal), DRESS, AGEP, cutaneous lupus erythematosus; Special Senses - speech disorder; Urogenital System – interstitial nephritis, urinary retention. 6.3 Combination Therapy with Amoxicillin and Clarithromycin In clinical trials using combination therapy with lansoprazole plus amoxicillin and clarithromycin, and lansoprazole plus amoxicillin, no adverse reactions peculiar to these drug combinations were observed. Adverse reactions that have occurred have been limited to those that had been previously reported with lansoprazole, amoxicillin, or clarithromycin. Triple Therapy: Lansoprazole/amoxicillin/clarithromycin The most frequently reported adverse reactions for patients who received triple therapy for 14 days were diarrhea (7%), headache (6%), and taste perversion (5%). There were no statistically significant differences in the frequency of reported adverse reactions between the 10 and 14 day triple therapy regimens. No treatment-emergent adverse reactions were observed at significantly higher rates with triple therapy than with any dual therapy regimen. Dual Therapy: Lansoprazole/amoxicillin The most frequently reported adverse reactions for patients who received lansoprazole three times daily plus amoxicillin three times daily dual therapy were diarrhea (8%) and headache (7%). No treatment-emergent adverse reactions were observed at significantly higher rates with lansoprazole three times daily plus amoxicillin three times daily dual therapy than with lansoprazole alone. For information about adverse reactions with antibacterial agents (amoxicillin and clarithromycin) indicated in combination with lansoprazole delayed-release orally disintegrating tablets, refer to the Adverse Reactions section of their prescribing information. 6.4 Laboratory Values The following changes in laboratory parameters in patients who received lansoprazole were reported as adverse reactions: Abnormal liver function tests, increased SGOT (AST), increased SGPT (ALT), increased creatinine, increased alkaline phosphatase, increased globulins, increased GGTP, increased/decreased/abnormal WBC, abnormal AG ratio, abnormal RBC, bilirubinemia, blood potassium increased, blood urea increased, crystal urine present, eosinophilia, hemoglobin decreased, hyperlipemia, increased/decreased electrolytes, increased/decreased cholesterol, increased glucocorticoids, increased LDH, increased/decreased/abnormal platelets, increased gastrin levels and positive fecal occult blood. Urine abnormalities such as albuminuria, glycosuria, and hematuria were also reported. Additional isolated laboratory abnormalities were reported. In the placebo-controlled studies, when SGOT (AST) and SGPT (ALT) were evaluated, 0.4% (4/978) and 0.4% (11/2677) patients, who received placebo and lansoprazole, respectively, had enzyme elevations greater than three times the upper limit of normal range at the final treatment visit. None of these patients who received lansoprazole reported jaundice at any time during the study. In clinical trials using combination therapy with lansoprazole plus amoxicillin and clarithromycin, and lansoprazole plus amoxicillin, no increased laboratory abnormalities particular to these drug combinations were observed. For information about laboratory value changes with antibacterial agents (amoxicillin and clarithromycin) indicated in combination with lansoprazole delayed-release orally disintegrating tablets, refer to the Adverse Reactions section of their prescribing information.

4 CONTRAINDICATIONS • Lansoprazole delayed-release orally disintegrating tablets are contraindicated in patients with known hypersensitivity to any component of the formulation. Hypersensitivity reactions may include anaphylaxis, anaphylactic shock, angioedema, bronchospasm, acute tubulointerstitial nephritis, and urticaria [see Warnings and Precautions (5.2) , Adverse Reactions ( 6 ) ]. • Proton Pump Inhibitors (PPIs), including lansoprazole delayed-release orally disintegrating tablets, are contraindicated with rilpivirine-containing products [see Drug Interactions (7) ]. • For information about contraindications of antibacterial agents (clarithromycin and amoxicillin) indicated in combination with lansoprazole delayed-release orally disintegrating tablets, refer to the Contraindications section of their prescribing information. Patients receiving rilpivirine-containing products. ( 4 , 7 ) Contraindicated in patients with known severe hypersensitivity to any component of the lansoprazole delayed-release orally disintegrating tablets formulations. ( 4 )

11 DESCRIPTION The active ingredient in lansoprazole delayed-release orally disintegrating tablet is lansoprazole USP, a substituted benzimidazole, 2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridyl] methyl] sulfinyl] benzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is C 16 H 14 F 3 N 3 O 2 S with a molecular weight of 369.37. Lansoprazole USP has the following structure: Lansoprazole USP is a white to brownish-white powder which melts with decomposition at approximately 166°C. Lansoprazole USP is freely soluble in dimethylformamide and practically insoluble in water. Lansoprazole USP is stable when exposed to light for up to two months. The rate of degradation of the compound in aqueous solution increases with decreasing pH. The degradation half-life of the drug substance in aqueous solution at 25°C is approximately 0.5 hour at pH 5.0 and approximately 18 hours at pH 7.0. Lansoprazole USP is supplied as delayed-release orally disintegrating tablets for oral administration. Lansoprazole delayed-release orally disintegrating tablets are available in two dosage strengths: 15 and 30 mg of lansoprazole USP per tablet. Each delayed-release orally disintegrating tablet contains enteric-coated microgranules consisting of 15 or 30 mg of lansoprazole USP (active ingredient) and the following inactive ingredients: aspartame 1 , citric acid anhydrous powder, crospovidone, ethyl acrylate and methyl methacrylate copolymer dispersion, glyceryl monostearate, hydroxypropyl methyl cellulose 3cps, hydroxypropyl methyl cellulose 15cps, hydroxypropyl cellulose, low substituted hydroxypropyl cellulose, iron oxide red, iron oxide yellow, magnesium carbonate, mannitol, magnesium stearate, methylacrylic acid ethyl acrylate copolymer dispersion, microcrystalline cellulose, polyethylene glycol, polysorbate 80, sodium hydroxide, strawberry guarana flavour, sugar spheres, talc, titanium dioxide, and triehtyl citrate. 1 Phenylketonurics: Lansoprazole Delayed-Release Orally Disintegrating Tablets Contain Phenylalanine 2.52 mg per 15 mg Tablet and 5.04 mg per 30 mg Tablet. structure

2 DOSAGE AND ADMINISTRATION Recommended Dosage: See full prescribing information for complete dosing information for lansoprazole delayed-release orally disintegrating tablets by indication and age group and dosage adjustment in patients with severe hepatic impairment. ( 2.1 , 2.2 , 2.3 ) Administration Instructions (2.4) Lansoprazole delayed-release orally disintegrating tablets • Should not be broken or cut. • Should not be chewed. • Place the tablet on the tongue and allow it to disintegrate, with or without water, until the particles can be swallowed. • See full prescribing information for alternative administration options. 2.1 Recommended Adult Dosage by Indication Indication Recommended Dose Frequency Duodenal Ulcers Short-Term Treatment 15 mg Once daily for 4 weeks Maintenance of Healed 15 mg Once daily Eradication of H. pylori to Reduce the Risk of Duodenal Ulcer Recurrence* Triple Therapy: Lansoprazole delayed-release orally disintegrating tablets 30 mg Twice daily for 10 or 14 days Amoxicillin 1 gram Twice daily for 10 or 14 days Clarithromycin 500 mg Twice daily for 10 or 14 days Dual Therapy: Lansoprazole delayed-release orally disintegrating tablets 30 mg Three times daily for 14 days Amoxicillin 1 gram Three times daily for 14 days Benign Gastric Ulcer Short-Term Treatment 30 mg Once daily for up to 8 weeks NSAID-Associated Gastric Ulcer Healing 30 mg Once daily for 8 weeks † Risk Reduction 15 mg Once daily for up to 12 weeks † Gastroesophageal Reflux Disease (GERD) Short-Term Treatment of Symptomatic GERD 15 mg Once daily for up to 8 weeks Short -Term Treatment of Erosive Esophagitis 30 mg Once daily for up to 8 weeks ‡ Maintenance of Healing of Erosive Esophagitis 15 mg Once daily ¶ Pathological Hypersecretory Conditions Including Zollinger-Ellison Syndrome 60 mg Once daily § * Please refer to the amoxicillin and clarithromycin full prescribing information, Contraindications and Warnings and Precautions sections, and for information regarding dosing in elderly and renally-impaired patients. † Controlled studies did not extend beyond indicated duration. ‡ For patients who do not heal with lansoprazole delayed-release orally disintegrating tablets for eight weeks (5 to 10%), it may be helpful to give an additional eight weeks of treatment. If there is a recurrence of erosive esophagitis, an additional eight week course of lansoprazole delayed-release orally disintegrating tablets may be considered. § Varies with individual patient. Recommended adult starting dose is 60 mg once daily. Doses should be adjusted to individual patient needs and should continue for as long as clinically indicated. Dosages up to 90 mg twice daily have been administered. Daily dose of greater than 120 mg should be administered in divided doses. Some patients with Zollinger-Ellison syndrome have been treated continuously with lansoprazole delayed-release orally disintegrating tablets for more than four years. ¶ Controlled studies did not extend beyond 12 months. 2.2 Recommended Pediatric Dosage by Indication Pediatric Patients 1 to 11 Years of Age In clinical studies, lansoprazole was not administered beyond 12 weeks in 1 to 11 year olds. It is not known if lansoprazole is safe and effective if used longer than the recommended duration. Do not exceed the recommended dose and duration of use in pediatric patients as outlined below [see Use in Specific Populations ( 8.4 )] . Indication Recommended Dose Frequency Short-Term Treatment of Symptomatic GERD and Short-Term Treatment of Erosive Esophagitis ≤30 kg 15 mg Once daily for up to 12 weeks >30 kg 30 mg Once daily for up to 12 weeks Pediatric Patients 12 to 17 Years of Age Indication Recommended Dose Frequency Short-Term Treatment of Symptomatic GERD Non-erosive GERD 15 mg Once daily for up to 8 weeks Erosive Esophagitis 30 mg Once daily for up to 8 weeks 2.3 Hepatic Impairment The recommended dosage is 15 mg orally daily in patients with severe liver impairment (Child-Pugh C) [see Use in Specific Populations ( 8.6 ) ]. 2.4 Important Administration Information Take lansoprazole delayed-release orally disintegrating tablets before meals. Do not crush or chew lansoprazole delayed-release orally disintegrating tablets. Take lansoprazole delayed-release orally disintegrating tablets at least 30 minutes prior to sucralfate [see Drug Interactions ( 7 ) ]. Antacids may be used concomitantly with lansoprazole delayed-release orally disintegrating tablets. Missed doses: If a dose is missed, administer as soon as possible. However, if the next scheduled dose is due, do not take the missed dose, and take the next dose on time. Do not take two doses at one time to make up for a missed dose. Lansoprazole delayed-release orally disintegrating tablets • Do not break or cut. • Place the tablet on the tongue, allow it to disintegrate, with or without water, until the microgranules can be swallowed. Do not chew the microgranules. • The tablet typically disintegrates in less than one minute. • Alternatively, for children or other patients who have difficulty swallowing tablets, lansoprazole delayed-release orally disintegrating tablets can be administered with water via oral syringe or NG tube as follows: Administration with Water in an Oral Syringe 1. Place a 15 mg tablet in oral syringe and draw up 4 mL of water, or place a 30 mg tablet in oral syringe and draw up 10 mL of water. 2. Shake gently to allow for a quick dispersal. 3. After the tablet has dispersed, administer the contents within 15 minutes of mixing into the mouth. Do not save the water and microgranule mixture for later use. 4. Refill the syringe with approximately 2 mL (5 mL for the 30 mg tablet) of water, shake gently, and administer any remaining contents. Administration with Water via a NG Tube (≥8 French) 1. Place a 15 mg tablet in a catheter-tip syringe and draw up 4 mL of water, or place a 30 mg tablet in a catheter-tip syringe and draw up 10 mL of water. 2. Shake gently to allow for a quick dispersal. 3. After the tablet has dispersed, shake the catheter-tip syringe gently in order to keep the microgranules from settling, and immediately inject the mixture through the NG tube into the stomach within 15 minutes of mixing. Do not save the water and microgranule mixture for later use. 4. Refill the catheter-tip syringe with approximately 5 mL of water, shake gently, and flush the tube.

1 INDICATIONS AND USAGE Lansoprazole delayed-release orally disintegrating tablet is a proton pump inhibitor (PPI) indicated for the: Treatment of active duodenal ulcer in adults. ( 1.1 ) Eradication of H. pylori to reduce the risk of duodenal ulcer recurrence in adults. (1.2) Maintenance of healed duodenal ulcers in adults. ( 1.3) Treatment of active benign gastric ulcer in adults. (1.4) Healing of nonsteroidal anti-inflammatory drugs (NSAID)-associated gastric ulcer in adults. ( 1.5 ) Risk reduction of NSAID-associated gastric ulcer in adults. (1.6) Treatment of symptomatic gastroesophageal reflux disease (GERD) in adults and pediatric patients 1 year of age and older. ( 1.7 ) Treatment of erosive esophagitis (EE) in adults and pediatric patients 1 year of age and older. ( 1.8 ) Maintenance of healing of EE in adults. ( 1.9 ) Pathological hypersecretory conditions, including Zollinger-Ellison syndrome (ZES) in adults. ( 1.10 ) 1.1 Treatment of Active Duodenal Ulcer Lansoprazole delayed-release orally disintegrating tablets are indicated in adults for short-term treatment (for four weeks) for healing and symptom relief of active duodenal ulcer [see Clinical Studies ( 14.1 ) ]. 1.2 Eradication of H. pylori to Reduce the Risk of Duodenal Ulcer Recurrence Triple Therapy: Lansoprazole delayed-release orally disintegrating tablets/amoxicillin/clarithromycin Lansoprazole delayed-release orally disintegrating tablets in combination with amoxicillin plus clarithromycin as triple therapy is indicated in adults for the treatment of patients with H. pylori infection and duodenal ulcer disease (active or one year history of a duodenal ulcer) to eradicate H. pylori . Eradication of H. pylori has been shown to reduce the risk of duodenal ulcer recurrence [see Clinical Studies ( 14.2 ) ]. Please refer to the full prescribing information for amoxicillin and clarithromycin. Dual Therapy: Lansoprazole delayed-release orally disintegrating tablets/amoxicillin Lansoprazole delayed-release orally disintegrating tablets in combination with amoxicillin as dual therapy is indicated in adults for the treatment of patients with H. pylori infection and duodenal ulcer disease (active or one year history of a duodenal ulcer) who are either allergic or intolerant to clarithromycin or in whom resistance to clarithromycin is known or suspected (see the clarithromycin prescribing information, Microbiology section). Eradication of H. pylori has been shown to reduce the risk of duodenal ulcer recurrence [see Clinical Studies ( 14.2 ) ]. Please refer to the full prescribing information for amoxicillin. 1.3 Maintenance of Healed Duodenal Ulcers Lansoprazole delayed-release orally disintegrating tablets are indicated in adults to maintain healing of duodenal ulcers. Controlled studies do not extend beyond 12 months [see Clinical Studies ( 14.3 ) ]. 1.4 Treatment of Active Benign Gastric Ulcer Lansoprazole delayed-release orally disintegrating tablets are indicated in adults for short-term treatment (up to eight weeks) for healing and symptom relief of active benign gastric ulcer [see Clinical Studies ( 14.4 ) ]. 1.5 Healing of NSAID-Associated Gastric Ulcer Lansoprazole delayed-release orally disintegrating tablets are indicated in adults for the treatment of NSAID-associated gastric ulcer in patients who continue NSAID use. Controlled studies did not extend beyond eight weeks [see Clinical Studies ( 14.5 )] . 1.6 Risk Reduction of NSAID-Associated Gastric Ulcer Lansoprazole delayed-release orally disintegrating tablets are indicated in adults for reducing the risk of NSAID-associated gastric ulcers in patients with a history of a documented gastric ulcer who require the use of an NSAID. Controlled studies did not extend beyond 12 weeks [see Clinical Studies ( 14.6 ) ]. 1.7 Treatment of Symptomatic Gastroesophageal Reflux Disease (GERD) Lansoprazole delayed-release orally disintegrating tablets are indicated for short-term treatment in adults and pediatric patients 12 to 17 years of age (up to eight weeks) and pediatric patients one to 11 years of age (up to 12 weeks) for the treatment of heartburn and other symptoms associated with GERD [see Clinical Studies ( 14.7 ) ]. 1.8 Treatment of Erosive Esophagitis (EE) Lansoprazole delayed-release orally disintegrating tablets are indicated for short-term treatment in adults and pediatric patients 12 to 17 years of age (up to eight weeks) and pediatric patients one to 11 years of age (up to 12 weeks) for healing and symptom relief of all grades of EE. For adults who do not heal with lansoprazole delayed-release orally disintegrating tablets for eight weeks (5 to 10%), it may be helpful to give an additional eight weeks of treatment. If there is a recurrence of erosive esophagitis an additional eight week course of lansoprazole delayed-release orally disintegrating tablets may be considered [see Clinical Studies ( 14.8 ) ]. 1.9 Maintenance of Healing of EE Lansoprazole delayed-release orally disintegrating tablets are indicated in adults to maintain healing of EE. Controlled studies did not extend beyond 12 months [see Clinical Studies ( 14.9 ) ]. 1.10 Pathological Hypersecretory Conditions Including Zollinger-Ellison Syndrome (ZES) Lansoprazole delayed-release orally disintegrating tablets are indicated in adults for the long-term treatment of pathological hypersecretory conditions, including Zollinger-Ellison syndrome [see Clinical Studies ( 14.10 ) ].

10 OVERDOSAGE Lansoprazole is not removed from the circulation by hemodialysis. In one reported overdose, a patient consumed 600 mg of lansoprazole with no adverse reaction. Oral lansoprazole doses up to 5,000 mg/kg in rats [approximately 1,300 times the 30 mg human dose based on body surface area(BSA)] and in mice (about 675.7 times the 30 mg human dose based on (BSA) did not produce deaths or any clinical signs. In the event of over-exposure, treatment should be symptomatic and supportive. If over-exposure occurs, call your poison control center at 1-800-222-1222 for current information on the management of poisoning or over-exposure.

7 DRUG INTERACTIONS Tables 2 and 3 include drugs with clinically important drug interactions and interaction with diagnostics when administered concomitantly with lansoprazole delayed-release orally disintegrating tablets and instructions for preventing or managing them. Consult the labeling of concomitantly used drugs to obtain further information about interactions with PPIs. Table 2. Clinically Relevant Interactions Affecting Drugs Coadministered with Lansoprazole Delayed-Release Orally Disintegrating Tablets and Interactions with Diagnostics Antiretrovirals Clinical Impact: The effect of PPIs on antiretroviral drugs is variable. The clinical importance and the mechanisms behind these interactions are not always known. Decreased exposure of some antiretroviral drugs (e.g., rilpivirine, atazanavir,and nelfinavir) when used concomitantly with lansoprazole may reduce antiviraleffect and promote the development of drug resistance. Increased exposure of other antiretroviral drugs (e.g., saquinavir) when usedconcomitantly with lansoprazole may increase toxicity of the antiretroviraldrugs. There are other antiretroviral drugs which do not result in clinically relevantinteractions with lansoprazole. Intervention: Rilpivirine-containing products: Concomitant use with lansoprazole delayed-release orally disintegrating tablets is contraindicated [ see Contraindications ( 4 )] . See prescribing information. Atazanavir: See prescribing information for atazanavir for dosing information. Nelfinavir: Avoid concomitant use with lansoprazole delayed-release orally disintegrating tablets. See prescribing information for nelfinavir. Saquinavir: See the prescribing information for saquinavir and monitor for potential saquinavir toxicities. Other antiretrovirals: See prescribing information. Warfarin Clinical Impact: Increased INR and prothrombin time in patients receiving PPIs and warfarin concomitantly. Increases in INR and prothrombin time may lead to abnormal bleeding and even death. Intervention: Monitor INR and prothrombin time. Dose adjustment of warfarin may be needed to maintain target INR range. See prescribing information for warfarin. Methotrexate Clinical Impact: Concomitant use of PPIs with methotrexate (primarily at high dose) may elevate and prolong serum concentrations of methotrexate and/or its metabolite hydroxymethotrexate, possibly leading to methotrexate toxicities. No formal drug interaction studies of high-dose methotrexate with PPIs have been conducted [ see Warnings and Precautions ( 5.10 )] . Intervention: A temporary withdrawal of lansoprazole delayed-release orally disintegrating tabletsmay be considered in some patients receiving high-dose methotrexate. Digoxin Clinical Impact: Potential for increased exposure of digoxin. Intervention: Monitor digoxin concentrations. Dose adjustment of digoxin may be needed to maintain therapeutic drug concentrations. See prescribing information for digoxin. Theophylline Clinical Impact: Increased clearance of theophylline [ see Clinical Pharmacology ( 12.3 )] . Intervention: Individual patients may require additional titration of their theophylline dosage when lansoprazole delayed-release orally disintegrating tablets are started or stopped to ensure clinically effective blood concentrations. Drugs Dependent on Gastric pH for Absorption (e.g., iron salts, erlotinib, dasatinib, nilotinib, mycophenolate mofetil, ketoconazole/itraconazole) Clinical Impact: Lansoprazole can reduce the absorption of other drugs due to its effect on reducing intragastric acidity. Intervention: Mycophenolate mofetil (MMF): Coadministration of PPIs in healthy subjects and in transplant patients receiving MMF has been reported to reduce the exposure to the active metabolite, mycophenolic acid (MPA), possibly due to a decrease in MMF solubility at an increased gastric pH. The clinical relevance of reduced MPA exposure on organ rejection has not been established in transplant patients receiving lansoprazole and MMF. Use lansoprazole delayed-release orally disintegrating tablets with caution in transplant patients receiving MMF. See the prescribing information for other drugs dependent on gastric pH for absorption. Combination Therapy with Clarithromycin and Amoxicillin Clinical Impact: Concomitant administration of clarithromycin with other drugs can lead to serious adverse reactions, including potentially fatal arrhythmias, and are contraindicated. Amoxicillin also has drug interactions. Intervention: • See Contraindications and Warnings and Precautions in prescribing information for clarithromycin. • See Drug Interactions in prescribing information for amoxicillin. Tacrolimus Clinical Impact: Potentially increased exposure of tacrolimus, especially in transplant patients who are intermediate or poor metabolizers of CYP2C19. Intervention: Monitor tacrolimus whole blood trough concentrations. Dose adjustment of tacrolimus may be needed to maintain therapeutic drug concentrations. See prescribing information for tacrolimus. Interactions with Investigations of Neuroendocrine Tumors Clinical Impact: CgA levels increase secondary to PPI-induced decreases in gastric acidity. The increased CgA level may cause false positive results in diagnostic investigations for neuroendocrine tumors [ see Warnings and Precautions ( 5.9 ), Clinical Pharmacology ( 12.2 )] . Intervention: Temporarily stop lansoprazole delayed-release orally disintegrating tablets treatment at least 14 days before assessing CgA levels and consider repeating the test if initial CgA levels are high. If serial tests are performed (e.g., for monitoring), the same commercial laboratory should be used for testing, as reference ranges between tests may vary. Interaction with Secretin Stimulation Test Clinical Impact: Hyper-response in gastrin secretion in response to secretin stimulation test, falsely suggesting gastrinoma. Intervention: Temporarily stop lansoprazole delayed-release orally disintegrating tablets treatment at least 28 days before assessing to allow gastrin levels to return to baseline [ see Clinical Pharmacology ( 12.2 )]. False Positive Urine Tests for THC Clinical Impact: There have been reports of false positive urine screening tests for tetrahydrocannabinol (THC) in patients receiving PPIs. Intervention: An alternative confirmatory method should be considered to verify positive results. Table 3. Clinically Relevant Interactions Affecting Lansoprazole Delayed-Release Orally Disintegrating Tablets When Coadministered with Other Drugs CYP2C19 OR CYP3A4 Inducers Clinical Impact: Decreased exposure of lansoprazole when used concomitantly with strong inducers [ see Clinical Pharmacology ( 12.3 )] . Intervention: St John’s Wort, rifampin: Avoid concomitant use with lansoprazole delayed-release orally disintegrating tablets. Ritonavir-containing products: See prescribing information. CYP2C19 or CYP3A4 Inhibitors Clinical Impact: Increased exposure of lansoprazole is expected when used concomitantly with strong inhibitors [ see Clinical Pharmacology ( 12.3 )] . Intervention: Voriconazole: See prescribing information. Sucralfate Clinical Impact: Decreased and delayed absorption of lansoprazole [see Clinical Pharmacology ( 12.3 ) ]. Intervention: Take lansoprazole delayed-release orally disintegrated tablets at least 30 minutes prior to sucralfate [ see Dosage and Administration ( 2.4 )] . See full prescribing information for a list of clinically important drug interactions. ( 7 )

12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Lansoprazole belongs to a class of antisecretory compounds, the substituted benzimidazoles, that suppress gastric acid secretion by specific inhibition of the (H + , K + )-ATPase enzyme system at the secretory surface of the gastric parietal cell. Because this enzyme system is regarded as the acid (proton) pump within the parietal cell, lansoprazole has been characterized as a gastric acid-pump inhibitor, in that it blocks the final step of acid production. This effect is dose-related and leads to inhibition of both basal and stimulated gastric acid secretion irrespective of the stimulus. Lansoprazole does not exhibit anticholinergic or histamine type-2 antagonist activity. 12.2 Pharmacodynamics Antisecretory Activity After oral administration, lansoprazole was shown to significantly decrease the basal acid output and significantly increase the mean gastric pH and percent of time the gastric pH was greater than three and greater than four. Lansoprazole also significantly reduced meal-stimulated gastric acid output and secretion volume, as well as pentagastrin-stimulated acid output. In patients with hypersecretion of acid, lansoprazole significantly reduced basal and pentagastrin-stimulated gastric acid secretion. Lansoprazole inhibited the normal increases in secretion volume, acidity and acid output induced by insulin. The intragastric pH results of a five day, pharmacodynamic, crossover study of 15 and 30 mg of once daily lansoprazole are presented in Table 6. Table 6: Mean Antisecretory Effects After Single and Multiple Daily Lansoprazole Dosing Lansoprazole Parameter Baseline Value 15 mg 30 mg Day 1 Day 5 Day 1 Day 5 Mean 24 Hour pH 2.1 2.7* 4* 3.6 † 4.9 † Mean Nighttime pH 1.9 2.4 3* 2.6 3.8 † % Time Gastric pH>3 18 33* 59* 51 † 72 † % Time Gastric pH>4 12 22* 49* 41 † 66 † NOTE: An intragastric pH of greater than four reflects a reduction in gastric acid by 99%. * (p<0.05) vs baseline only. † (p<0.05) vs baseline and lansoprazole 15 mg. After the initial dose in this study, increased gastric pH was seen within one to two hours with 30 mg of lansoprazole and two to three hours with 15 mg of lansoprazole. After multiple daily dosing, increased gastric pH was seen within the first hour post-dosing with 30 mg of lansoprazole and within one to two hours postdosing with 15 mg of lansoprazole. Acid suppression may enhance the effect of antimicrobials in eradicating Helicobacter pylori (H. pylori). The percentage of time gastric pH was elevated above five and six was evaluated in a crossover study of lansoprazole given daily, twice daily and three times daily (Table 7). Table 7: Mean Antisecretory Effects After Five Days of Twice Daily and Three Times Daily Dosing Lansoprazole Parameter 30 mg daily 14 mg twice daily 30 mg twice daily 30 mg three times daily % Time Gastric pH>5 43 47 59* 77 + % Time Gastric pH>6 20 23 28 45 + * (p<0.05) vs lansoprazole 30 mg daily + (p<0.05) vs lansoprazole 30 mg daily, 15 and 30 mg twice daily. The inhibition of gastric acid secretion as measured by intragastric pH gradually returned to normal over two to four days after multiple doses. There was no indication of rebound gastric acidity. Enterochromaffin-like (ECL) Cell Effects During lifetime exposure of rats with up to 150 mg/kg/day of lansoprazole dosed seven days per week, marked hypergastrinemia was observed followed by ECL cell proliferation and formation of carcinoid tumors, especially in female rats. Gastric biopsy specimens from the body of the stomach from approximately 150 patients treated continuously with lansoprazole for at least one year did not show evidence of ECL cell effects similar to those seen in rat studies. Longer term data are needed to rule out the possibility of an increased risk of the development of gastric tumors in patients receiving long-term therapy with lansoprazole [see Nonclinical Toxicology ( 13.1 ) ]. Other Gastric Effects in Humans Lansoprazole did not significantly affect mucosal blood flow in the fundus of the stomach. Due to the normal physiologic effect caused by the inhibition of gastric acid secretion, a decrease of about 17% in blood flow in the antrum, pylorus, and duodenal bulb was seen. Lansoprazole significantly slowed the gastric emptying of digestible solids. Lansoprazole increased serum pepsinogen levels and decreased pepsin activity under basal conditions and in response to meal stimulation or insulin injection. As with other agents that elevate intragastric pH, increases in gastric pH were associated with increases in nitrate-reducing bacteria and elevation of nitrite concentration in gastric juice in patients with gastric ulcer. No significant increase in nitrosamine concentrations was observed. Serum Gastrin Effects In over 2,100 patients, median fasting serum gastrin levels increased 50 to 100% from baseline but remained within normal range after treatment with 15 to 60 mg of oral lansoprazole. These elevations reached a plateau within two months of therapy and returned to pretreatment levels within four weeks after discontinuation of therapy. Increased gastrin causes enterochromaffin-like cell hyperplasia and increased serum CgA levels. The increased CgA levels may cause false positive results in diagnostic investigations for neuroendocrine tumors [ see Warnings and Precautions ( 5.9 )] . Endocrine Effects Human studies for up to one year have not detected any clinically significant effects on the endocrine system. Hormones studied include testosterone, luteinizing hormone (LH), follicle stimulating hormone (FSH), sex hormone binding globulin (SHBG), dehydroepiandrosterone sulfate (DHEA-S), prolactin, cortisol, estradiol, insulin, aldosterone, parathormone, glucagon, thyroid stimulating hormone (TSH), triiodothyronine (T 3 ), thyroxine (T 4 ), and somatotropic hormone (STH). Lansoprazole in oral doses of 15 to 60 mg for up to one year had no clinically significant effect on sexual function. In addition, lansoprazole in oral doses of 15 to 60 mg for two to eight weeks had no clinically significant effect on thyroid function. In 24 month carcinogenicity studies in Sprague-Dawley rats with daily lansoprazole dosages up to 150 mg/kg, proliferative changes in the Leydig cells of the testes, including benign neoplasm, were increased compared to control rats. Other Effects No systemic effects of lansoprazole on the central nervous system, lymphoid, hematopoietic, renal, hepatic, cardiovascular, or respiratory systems have been found in humans. Among 56 patients who had extensive baseline eye evaluations, no visual toxicity was observed after lansoprazole treatment (up to 180 mg/day) for up to 58 months. After lifetime lansoprazole exposure in rats, focal pancreatic atrophy, diffuse lymphoid hyperplasia in the thymus, and spontaneous retinal atrophy were seen. 12.3 Pharmacokinetics Absorption: Lansoprazole delayed-release orally disintegrating tablets contain an enteric-coated granule formulation of lansoprazole (because lansoprazole is acid-labile), so that absorption of lansoprazole begins only after the granules leave the stomach. The mean peak plasma levels of lansoprazole occur at approximately 1.7 hours. After a single-dose administration of 15 to 60 mg of oral lansoprazole, the peak plasma concentrations (C max ) of lansoprazole and the area under the plasma concentration curves (AUCs) of lansoprazole were approximately proportional to the administered dose. Lansoprazole does not accumulate and its pharmacokinetics are unaltered by multiple dosing. The absolute bioavailability is over 80%. In healthy subjects, the mean (±SD) plasma half-life was 1.5 (±1) hours. Both the C max and AUC are diminished by about 50 to 70% if lansoprazole is given 30 minutes after food, compared to the fasting condition. There is no significant food effect if lansoprazole is given before meals. Distribution : Lansoprazole is 97% bound to plasma proteins. Plasma protein binding is constant over the concentration range of 0.05 to 5 mcg/mL. Elimination: Metabolism: Lansoprazole is extensively metabolized in the liver. Two metabolites have been identified in measurable quantities in plasma (the hydroxylated sulfinyl and sulfone derivatives of lansoprazole). These metabolites have very little or no antisecretory activity. Lansoprazole is thought to be transformed into two active species which inhibit acid secretion by blocking the proton pump [(H + , K + )-ATPase enzyme system] at the secretory surface of the gastric parietal cell. The two active species are not present in the systemic circulation. The plasma elimination half-life of lansoprazole is less than two hours while the acid inhibitory effect lasts more than 24 hours. Therefore, the plasma elimination half-life of lansoprazole does not reflect its duration of suppression of gastric acid secretion. Excretion: Following single-dose oral administration of lansoprazole, virtually no unchanged lansoprazole was excreted in the urine. In one study, after a single oral dose of 14 C-lansoprazole, approximately one-third of the administered radiation was excreted in the urine and two-thirds was recovered in the feces. This implies a significant biliary excretion of the lansoprazole metabolites. Specific Populations Pediatric Patient s: One to 17 years of age The pharmacokinetics of lansoprazole were studied in pediatric patients with GERD aged one to 11 years and 12 to 17 years in two separate clinical studies. In children aged one to 11 years, lansoprazole was dosed 15 mg daily for subjects weighing ≤30 kg and 30 mg daily for subjects weighing greater than 30 kg. Mean C max and AUC values observed on Day 5 of dosing were similar between the two dose groups and were not affected by weight or age within each weight-adjusted dose group used in the study. In adolescent subjects aged 12 to 17 years, subjects were randomized to receive lansoprazole at 15 or 30 mg daily. Mean C max and AUC values of lansoprazole were not affected by body weight or age; and nearly dose-proportional increases in mean C max and AUC values were observed between the two dose groups in the study. Overall, lansoprazole pharmacokinetics in pediatric patients aged one to 17 years were similar to those observed in healthy adult subjects. Geriatric Patients: The clearance of lansoprazole is decreased in the elderly, with elimination half-life increased approximately 50 to 100%. Because the mean half-life in the elderly remains between 1.9 to 2.9 hours, repeated once daily dosing does not result in accumulation of lansoprazole. Peak plasma levels were not increased in the elderly [see Use in Specific Populations ( 8.5 ) ]. Male and Female Patients: In a study comparing 12 male and six female human subjects who received lansoprazole, no sex-related differences were found in pharmacokinetics and intragastric pH results. Racial or Ethnic Groups: The pooled mean pharmacokinetic parameters of lansoprazole from twelve U.S. studies (N=513) were compared to the mean pharmacokinetic parameters from two Asian studies (N=20). The mean AUCs of lansoprazole in Asian subjects were approximately twice those seen in pooled U.S. data; however, the inter-individual variability was high. The C max values were comparable. Patients with Renal Impairment: In patients with severe renal impairment, plasma protein binding decreased by 1 to 1.5% after administration of 60 mg of lansoprazole. Patients with renal impairment had a shortened elimination half-life and decreased total AUC (free and bound). The AUC for free lansoprazole in plasma, however, was not related to the degree of renal impairment; and the C max and T max (time to reach the maximum concentration) were not different than the C max and T max from subjects with normal renal function. Therefore, the pharmacokinetics of lansoprazole were not clinically different in patients with mild, moderate or severe renal impairment compared to healthy subjects with normal renal function. Patients with Hepatic Impairment: In patients with mild (Child-Pugh Class A) or moderate (Child-Pugh Class B) hepatic impairment there was an approximate 3-fold increase in mean AUC compared to healthy subjects with normal hepatic function following multiple oral doses of 30 mg lansoprazole for seven days. The corresponding mean plasma half-life of lansoprazole was prolonged from 1.5 to four hours (Child-Pugh A) or five hours (Child Pugh B). In patients with compensated and decompensated cirrhosis, there was an approximate 6-and 5-fold increase in AUC, respectively, compared to healthy subjects with normal hepatic function following a single oral dose of 30 mg lansoprazole [ see Dosage and Administration ( 2.3 ), Use in Specific Populations ( 8.6 )] . Drug Interaction Studies Effect of Lansoprazole on Other Drugs Cytochrome P450 Interactions: Lansoprazole is metabolized through the cytochrome P450 system, specifically through the CYP3A and CYP2C19 isozymes. Studies have shown that lansoprazole does not have clinically significant interactions with other drugs metabolized by the cytochrome P 450 system, such as warfarin, antipyrine, indomethacin, ibuprofen, phenytoin, propranolol, prednisone, diazepam, or clarithromycin in healthy subjects. These compounds are metabolized through various cytochrome P 450 isozymes including CYP1A2, CYP2C9, CYP2C19, CYP2D6, and CYP3A. Theophylline: When lansoprazole was administered concomitantly with theophylline (CYP1A2, CYP3A), a minor increase (10%) in the clearance of theophylline was seen. Because of the small magnitude and the direction of the effect on theophylline clearance, this interaction is unlikely to be of clinical concern [ see Drug Interactions ( 7 )]. Methotrexate and 7-hydroxymethotrexate: In an open-label, single-arm, eight day, pharmacokinetic study of 28 adult rheumatoid arthritis patients (who required the chronic use of 7.5 to 15 mg of methotrexate given weekly), administration of seven days of naproxen 500 mg twice daily and lansoprazole 30 mg daily had no effect on the pharmacokinetics of methotrexate and 7-hydroxymethotrexate. While this study was not designed to assess the safety of this combination of drugs, no major adverse reactions were noted. However, this study was conducted with low doses of methotrexate. A drug interaction study with high doses of methotrexate has not been conducted [ see Warnings and Precautions ( 5.10 )] . Amoxicillin: Lansoprazole has also been shown to have no clinically significant interaction with amoxicillin. Sucralfate: In a single-dose crossover study examining lansoprazole 30 mg administered alone and concomitantly with sucralfate 1 gram, absorption of lansoprazole was delayed and the bioavailability was reduced by 17% when administered concomitantly with sucralfate [ see Dosage and Administration ( 2.4 ), Drug Interactions ( 7 ) ]. Antacids: In clinical trials, antacids were administered concomitantly with lansoprazole and there was no evidence of a change in the efficacy of lansoprazole. Clopidogrel: Clopidogrel is metabolized to its active metabolite in part by CYP2C19. A study of healthy subjects who were CYP2C19 extensive metabolizers, receiving once daily administration of clopidogrel 75 mg alone or concomitantly with lansoprazole 30 mg (n=40), for nine days was conducted. The mean AUC of the active metabolite of clopidogrel was reduced by approximately 14% (mean AUC ratio was 86%, with 90% CI of 80 to 92%) when lansoprazole was coadministered compared to administration of clopidogrel alone. Pharmacodynamic parameters were also measured and demonstrated that the change in inhibition of platelet aggregation (induced by 5 mcM ADP) was related to the change in the exposure to clopidogrel active metabolite. The effect on exposure to the active metabolite of clopidogrel and on clopidogrel-induced platelet inhibition is not considered clinically important. Effect of Other Drugs on Lansoprazole Because lansoprazole is metabolized by CYP2C19 and CYP3A4, inducers and inhibitors of these enzymes may potentially alter exposure of lansoprazole. 12.4 Microbiology Microbiology Lansoprazole, clarithromycin and/or amoxicillin have been shown to be active against most strains of Helicobacter pylori in vitro and in clinical infections [see Indications and Usage ( 1.2 ) ]. Helicobacter pylori Pretreatment Resistance Clarithromycin pretreatment resistance (≥2 mcg/mL) was 9.5% (91/960) by E-test and 11.3% (12/106) by agar dilution in the dual and triple therapy clinical trials (M93-125, M93-130, M93-131, M95-392, and M95-399). Amoxicillin pretreatment susceptible isolates (≤0.25 mcg/mL) occurred in 97.8% (936/957) and 98% (98/100) of the patients in the dual and triple therapy clinical trials by E-test and agar dilution, respectively. Twenty-one of 957 patients (2.2%) by E-test, and two of 100 patients (2%) by agar dilution, had amoxicillin pretreatment MICs of greater than 0.25 mcg/mL. One patient on the 14 day triple therapy regimen had an unconfirmed pretreatment amoxicillin minimum inhibitory concentration (MIC) of greater than 256 mcg/mL by E-test and the patient was eradicated of H. pylori (Table 8). Table 8: Clarithromycin Susceptibility Test Results and Clinical/Bacteriological Outcomes * Clarithromycin Pretreatment Results Clarithromycin Post-treatment Results H. pylori negative- eradicated H. pylori positive – not eradicated Post-treatment susceptibility results S † I † R † No MIC Triple Therapy 14 Day (lansoprazole 30 mg twice daily/amoxicillin 1 g twice daily/clarithromycin 500 mg twice daily) (M95-399, M93-131, M95-392) Susceptible † 112 105 7 Intermediate † 3 3 Resistant † 17 6 7 4 Triple Therapy 10 Day (lansoprazole 30 mg twice daily/amoxicillin 1 g twice daily/clarithromycin 500 mg twice daily) (M95-399) Susceptible † 42 40 1 1 Intermediate † Resistant † 4 1 3 * Includes only patients with pretreatment clarithromycin susceptibility test results † Susceptible (S) MIC ≤0.25 mcg/mL, Intermediate (I) MIC 0.5 to 1 mcg/mL, Resistant (R) MIC ≥2 mcg/mL Patients not eradicated of H. pylori following lansoprazole/amoxicillin/clarithromycin triple therapy will likely have clarithromycin resistant H. pylori . Therefore, for those patients who fail therapy, clarithromycin susceptibility testing should be done when possible. Patients with clarithromycin resistant H. pylori should not be treated with lansoprazole/amoxicillin/clarithromycin triple therapy or with regimens which include clarithromycin as the sole antimicrobial agent. Amoxicillin Susceptibility Test Results and Clinical/Bacteriological Outcomes: In the dual and triple therapy clinical trials, 82.6% (195/236) of the patients that had pretreatment amoxicillin susceptible MICs (≤0.25 mcg/mL) were eradicated of H. pylori . Of those with pretreatment amoxicillin MICs of greater than 0.25 mcg/mL, three of six had the H. pylori eradicated. A total of 30% (21/70) of the patients failed lansoprazole 30 mg three times daily/amoxicillin 1 g three times daily dual therapy and a total of 12.8% (22/172) of the patients failed the 10 and 14 day triple therapy regimens. Post-treatment susceptibility results were not obtained on 11 of the patients who failed therapy. Nine of the 11 patients with amoxicillin post-treatment MICs that failed the triple therapy regimen also had clarithromycin resistant H. pylori isolates. Susceptibility Test for Helicobacter pylori: For susceptibility testing information about Helicobacter pylori, see Microbiology section in prescribing information for clarithromycin and amoxicillin.

12.1 Mechanism of Action Lansoprazole belongs to a class of antisecretory compounds, the substituted benzimidazoles, that suppress gastric acid secretion by specific inhibition of the (H + , K + )-ATPase enzyme system at the secretory surface of the gastric parietal cell. Because this enzyme system is regarded as the acid (proton) pump within the parietal cell, lansoprazole has been characterized as a gastric acid-pump inhibitor, in that it blocks the final step of acid production. This effect is dose-related and leads to inhibition of both basal and stimulated gastric acid secretion irrespective of the stimulus. Lansoprazole does not exhibit anticholinergic or histamine type-2 antagonist activity.

12.2 Pharmacodynamics Antisecretory Activity After oral administration, lansoprazole was shown to significantly decrease the basal acid output and significantly increase the mean gastric pH and percent of time the gastric pH was greater than three and greater than four. Lansoprazole also significantly reduced meal-stimulated gastric acid output and secretion volume, as well as pentagastrin-stimulated acid output. In patients with hypersecretion of acid, lansoprazole significantly reduced basal and pentagastrin-stimulated gastric acid secretion. Lansoprazole inhibited the normal increases in secretion volume, acidity and acid output induced by insulin. The intragastric pH results of a five day, pharmacodynamic, crossover study of 15 and 30 mg of once daily lansoprazole are presented in Table 6. Table 6: Mean Antisecretory Effects After Single and Multiple Daily Lansoprazole Dosing Lansoprazole Parameter Baseline Value 15 mg 30 mg Day 1 Day 5 Day 1 Day 5 Mean 24 Hour pH 2.1 2.7* 4* 3.6 † 4.9 † Mean Nighttime pH 1.9 2.4 3* 2.6 3.8 † % Time Gastric pH>3 18 33* 59* 51 † 72 † % Time Gastric pH>4 12 22* 49* 41 † 66 † NOTE: An intragastric pH of greater than four reflects a reduction in gastric acid by 99%. * (p<0.05) vs baseline only. † (p<0.05) vs baseline and lansoprazole 15 mg. After the initial dose in this study, increased gastric pH was seen within one to two hours with 30 mg of lansoprazole and two to three hours with 15 mg of lansoprazole. After multiple daily dosing, increased gastric pH was seen within the first hour post-dosing with 30 mg of lansoprazole and within one to two hours postdosing with 15 mg of lansoprazole. Acid suppression may enhance the effect of antimicrobials in eradicating Helicobacter pylori (H. pylori). The percentage of time gastric pH was elevated above five and six was evaluated in a crossover study of lansoprazole given daily, twice daily and three times daily (Table 7). Table 7: Mean Antisecretory Effects After Five Days of Twice Daily and Three Times Daily Dosing Lansoprazole Parameter 30 mg daily 14 mg twice daily 30 mg twice daily 30 mg three times daily % Time Gastric pH>5 43 47 59* 77 + % Time Gastric pH>6 20 23 28 45 + * (p<0.05) vs lansoprazole 30 mg daily + (p<0.05) vs lansoprazole 30 mg daily, 15 and 30 mg twice daily. The inhibition of gastric acid secretion as measured by intragastric pH gradually returned to normal over two to four days after multiple doses. There was no indication of rebound gastric acidity. Enterochromaffin-like (ECL) Cell Effects During lifetime exposure of rats with up to 150 mg/kg/day of lansoprazole dosed seven days per week, marked hypergastrinemia was observed followed by ECL cell proliferation and formation of carcinoid tumors, especially in female rats. Gastric biopsy specimens from the body of the stomach from approximately 150 patients treated continuously with lansoprazole for at least one year did not show evidence of ECL cell effects similar to those seen in rat studies. Longer term data are needed to rule out the possibility of an increased risk of the development of gastric tumors in patients receiving long-term therapy with lansoprazole [see Nonclinical Toxicology ( 13.1 ) ]. Other Gastric Effects in Humans Lansoprazole did not significantly affect mucosal blood flow in the fundus of the stomach. Due to the normal physiologic effect caused by the inhibition of gastric acid secretion, a decrease of about 17% in blood flow in the antrum, pylorus, and duodenal bulb was seen. Lansoprazole significantly slowed the gastric emptying of digestible solids. Lansoprazole increased serum pepsinogen levels and decreased pepsin activity under basal conditions and in response to meal stimulation or insulin injection. As with other agents that elevate intragastric pH, increases in gastric pH were associated with increases in nitrate-reducing bacteria and elevation of nitrite concentration in gastric juice in patients with gastric ulcer. No significant increase in nitrosamine concentrations was observed. Serum Gastrin Effects In over 2,100 patients, median fasting serum gastrin levels increased 50 to 100% from baseline but remained within normal range after treatment with 15 to 60 mg of oral lansoprazole. These elevations reached a plateau within two months of therapy and returned to pretreatment levels within four weeks after discontinuation of therapy. Increased gastrin causes enterochromaffin-like cell hyperplasia and increased serum CgA levels. The increased CgA levels may cause false positive results in diagnostic investigations for neuroendocrine tumors [ see Warnings and Precautions ( 5.9 )] . Endocrine Effects Human studies for up to one year have not detected any clinically significant effects on the endocrine system. Hormones studied include testosterone, luteinizing hormone (LH), follicle stimulating hormone (FSH), sex hormone binding globulin (SHBG), dehydroepiandrosterone sulfate (DHEA-S), prolactin, cortisol, estradiol, insulin, aldosterone, parathormone, glucagon, thyroid stimulating hormone (TSH), triiodothyronine (T 3 ), thyroxine (T 4 ), and somatotropic hormone (STH). Lansoprazole in oral doses of 15 to 60 mg for up to one year had no clinically significant effect on sexual function. In addition, lansoprazole in oral doses of 15 to 60 mg for two to eight weeks had no clinically significant effect on thyroid function. In 24 month carcinogenicity studies in Sprague-Dawley rats with daily lansoprazole dosages up to 150 mg/kg, proliferative changes in the Leydig cells of the testes, including benign neoplasm, were increased compared to control rats. Other Effects No systemic effects of lansoprazole on the central nervous system, lymphoid, hematopoietic, renal, hepatic, cardiovascular, or respiratory systems have been found in humans. Among 56 patients who had extensive baseline eye evaluations, no visual toxicity was observed after lansoprazole treatment (up to 180 mg/day) for up to 58 months. After lifetime lansoprazole exposure in rats, focal pancreatic atrophy, diffuse lymphoid hyperplasia in the thymus, and spontaneous retinal atrophy were seen.

12.3 Pharmacokinetics Absorption: Lansoprazole delayed-release orally disintegrating tablets contain an enteric-coated granule formulation of lansoprazole (because lansoprazole is acid-labile), so that absorption of lansoprazole begins only after the granules leave the stomach. The mean peak plasma levels of lansoprazole occur at approximately 1.7 hours. After a single-dose administration of 15 to 60 mg of oral lansoprazole, the peak plasma concentrations (C max ) of lansoprazole and the area under the plasma concentration curves (AUCs) of lansoprazole were approximately proportional to the administered dose. Lansoprazole does not accumulate and its pharmacokinetics are unaltered by multiple dosing. The absolute bioavailability is over 80%. In healthy subjects, the mean (±SD) plasma half-life was 1.5 (±1) hours. Both the C max and AUC are diminished by about 50 to 70% if lansoprazole is given 30 minutes after food, compared to the fasting condition. There is no significant food effect if lansoprazole is given before meals. Distribution : Lansoprazole is 97% bound to plasma proteins. Plasma protein binding is constant over the concentration range of 0.05 to 5 mcg/mL. Elimination: Metabolism: Lansoprazole is extensively metabolized in the liver. Two metabolites have been identified in measurable quantities in plasma (the hydroxylated sulfinyl and sulfone derivatives of lansoprazole). These metabolites have very little or no antisecretory activity. Lansoprazole is thought to be transformed into two active species which inhibit acid secretion by blocking the proton pump [(H + , K + )-ATPase enzyme system] at the secretory surface of the gastric parietal cell. The two active species are not present in the systemic circulation. The plasma elimination half-life of lansoprazole is less than two hours while the acid inhibitory effect lasts more than 24 hours. Therefore, the plasma elimination half-life of lansoprazole does not reflect its duration of suppression of gastric acid secretion. Excretion: Following single-dose oral administration of lansoprazole, virtually no unchanged lansoprazole was excreted in the urine. In one study, after a single oral dose of 14 C-lansoprazole, approximately one-third of the administered radiation was excreted in the urine and two-thirds was recovered in the feces. This implies a significant biliary excretion of the lansoprazole metabolites. Specific Populations Pediatric Patient s: One to 17 years of age The pharmacokinetics of lansoprazole were studied in pediatric patients with GERD aged one to 11 years and 12 to 17 years in two separate clinical studies. In children aged one to 11 years, lansoprazole was dosed 15 mg daily for subjects weighing ≤30 kg and 30 mg daily for subjects weighing greater than 30 kg. Mean C max and AUC values observed on Day 5 of dosing were similar between the two dose groups and were not affected by weight or age within each weight-adjusted dose group used in the study. In adolescent subjects aged 12 to 17 years, subjects were randomized to receive lansoprazole at 15 or 30 mg daily. Mean C max and AUC values of lansoprazole were not affected by body weight or age; and nearly dose-proportional increases in mean C max and AUC values were observed between the two dose groups in the study. Overall, lansoprazole pharmacokinetics in pediatric patients aged one to 17 years were similar to those observed in healthy adult subjects. Geriatric Patients: The clearance of lansoprazole is decreased in the elderly, with elimination half-life increased approximately 50 to 100%. Because the mean half-life in the elderly remains between 1.9 to 2.9 hours, repeated once daily dosing does not result in accumulation of lansoprazole. Peak plasma levels were not increased in the elderly [see Use in Specific Populations ( 8.5 ) ]. Male and Female Patients: In a study comparing 12 male and six female human subjects who received lansoprazole, no sex-related differences were found in pharmacokinetics and intragastric pH results. Racial or Ethnic Groups: The pooled mean pharmacokinetic parameters of lansoprazole from twelve U.S. studies (N=513) were compared to the mean pharmacokinetic parameters from two Asian studies (N=20). The mean AUCs of lansoprazole in Asian subjects were approximately twice those seen in pooled U.S. data; however, the inter-individual variability was high. The C max values were comparable. Patients with Renal Impairment: In patients with severe renal impairment, plasma protein binding decreased by 1 to 1.5% after administration of 60 mg of lansoprazole. Patients with renal impairment had a shortened elimination half-life and decreased total AUC (free and bound). The AUC for free lansoprazole in plasma, however, was not related to the degree of renal impairment; and the C max and T max (time to reach the maximum concentration) were not different than the C max and T max from subjects with normal renal function. Therefore, the pharmacokinetics of lansoprazole were not clinically different in patients with mild, moderate or severe renal impairment compared to healthy subjects with normal renal function. Patients with Hepatic Impairment: In patients with mild (Child-Pugh Class A) or moderate (Child-Pugh Class B) hepatic impairment there was an approximate 3-fold increase in mean AUC compared to healthy subjects with normal hepatic function following multiple oral doses of 30 mg lansoprazole for seven days. The corresponding mean plasma half-life of lansoprazole was prolonged from 1.5 to four hours (Child-Pugh A) or five hours (Child Pugh B). In patients with compensated and decompensated cirrhosis, there was an approximate 6-and 5-fold increase in AUC, respectively, compared to healthy subjects with normal hepatic function following a single oral dose of 30 mg lansoprazole [ see Dosage and Administration ( 2.3 ), Use in Specific Populations ( 8.6 )] . Drug Interaction Studies Effect of Lansoprazole on Other Drugs Cytochrome P450 Interactions: Lansoprazole is metabolized through the cytochrome P450 system, specifically through the CYP3A and CYP2C19 isozymes. Studies have shown that lansoprazole does not have clinically significant interactions with other drugs metabolized by the cytochrome P 450 system, such as warfarin, antipyrine, indomethacin, ibuprofen, phenytoin, propranolol, prednisone, diazepam, or clarithromycin in healthy subjects. These compounds are metabolized through various cytochrome P 450 isozymes including CYP1A2, CYP2C9, CYP2C19, CYP2D6, and CYP3A. Theophylline: When lansoprazole was administered concomitantly with theophylline (CYP1A2, CYP3A), a minor increase (10%) in the clearance of theophylline was seen. Because of the small magnitude and the direction of the effect on theophylline clearance, this interaction is unlikely to be of clinical concern [ see Drug Interactions ( 7 )]. Methotrexate and 7-hydroxymethotrexate: In an open-label, single-arm, eight day, pharmacokinetic study of 28 adult rheumatoid arthritis patients (who required the chronic use of 7.5 to 15 mg of methotrexate given weekly), administration of seven days of naproxen 500 mg twice daily and lansoprazole 30 mg daily had no effect on the pharmacokinetics of methotrexate and 7-hydroxymethotrexate. While this study was not designed to assess the safety of this combination of drugs, no major adverse reactions were noted. However, this study was conducted with low doses of methotrexate. A drug interaction study with high doses of methotrexate has not been conducted [ see Warnings and Precautions ( 5.10 )] . Amoxicillin: Lansoprazole has also been shown to have no clinically significant interaction with amoxicillin. Sucralfate: In a single-dose crossover study examining lansoprazole 30 mg administered alone and concomitantly with sucralfate 1 gram, absorption of lansoprazole was delayed and the bioavailability was reduced by 17% when administered concomitantly with sucralfate [ see Dosage and Administration ( 2.4 ), Drug Interactions ( 7 ) ]. Antacids: In clinical trials, antacids were administered concomitantly with lansoprazole and there was no evidence of a change in the efficacy of lansoprazole. Clopidogrel: Clopidogrel is metabolized to its active metabolite in part by CYP2C19. A study of healthy subjects who were CYP2C19 extensive metabolizers, receiving once daily administration of clopidogrel 75 mg alone or concomitantly with lansoprazole 30 mg (n=40), for nine days was conducted. The mean AUC of the active metabolite of clopidogrel was reduced by approximately 14% (mean AUC ratio was 86%, with 90% CI of 80 to 92%) when lansoprazole was coadministered compared to administration of clopidogrel alone. Pharmacodynamic parameters were also measured and demonstrated that the change in inhibition of platelet aggregation (induced by 5 mcM ADP) was related to the change in the exposure to clopidogrel active metabolite. The effect on exposure to the active metabolite of clopidogrel and on clopidogrel-induced platelet inhibition is not considered clinically important. Effect of Other Drugs on Lansoprazole Because lansoprazole is metabolized by CYP2C19 and CYP3A4, inducers and inhibitors of these enzymes may potentially alter exposure of lansoprazole.

20230721

10

3 DOSAGE FORMS AND STRENGTHS • Lansoprazole delayed-release orally disintegrating tablets, 15 mg are white to off white, round, flat faced beveled edge, uncoated tablets with orange to dark brown colored speckles,debossed with ‘ ’ on one side and ‘15’ on the other side. • Lansoprazole delayed-release orally disintegrating tablets, 30 mg are white to off white, round, flat faced beveled edge, uncoated tablets with orange to dark brown colored speckles,debossed with ‘ ’ on one side and ‘30’ on the other side. Delayed-release orally disintegrating tablets: 15 mg and 30 mg. ( 3 )

Lansoprazole lansoprazole lansoprazole lansoprazole Aspartame Anhydrous Citric Acid Cellulose, Microcrystalline Crospovidone Hypromellose 2910 (3 Mpa.S) Low-Substituted Hydroxypropyl Cellulose, Unspecified Magnesium Carbonate Magnesium Stearate Ethyl Acrylate and Methyl Methacrylate Copolymer Dispersion (2:1; 750000 MW 30% AQUEOUS) Methacrylic Acid and Ethyl Acrylate Copolymer Glyceryl Monostearate Hypromellose 2910 (15 Mpa.S) Ferric Oxide Red Ferric Oxide Yellow Mannitol Sucrose Polyethylene Glycol 6000 Polysorbate 80 Sodium Hydroxide Strawberry titanium dioxide talc Triethyl Citrate Hydroxypropyl Cellulose (90000 Wamw) flat faced beveled edge logo;15 White to off white with orange to dark brown coloured speckles Lansoprazole lansoprazole lansoprazole lansoprazole Aspartame Anhydrous Citric Acid Cellulose, Microcrystalline Crospovidone Hypromellose 2910 (3 Mpa.S) Low-Substituted Hydroxypropyl Cellulose, Unspecified Magnesium Carbonate Magnesium Stearate Ethyl Acrylate and Methyl Methacrylate Copolymer Dispersion (2:1; 750000 MW 30% AQUEOUS) Methacrylic Acid and Ethyl Acrylate Copolymer Glyceryl Monostearate Hypromellose 2910 (15 Mpa.S) Ferric Oxide Red Ferric Oxide Yellow Mannitol Sucrose Polyethylene Glycol 6000 Polysorbate 80 Sodium Hydroxide Strawberry titanium dioxide talc Triethyl Citrate Hydroxypropyl Cellulose (90000 Wamw) flat faced beveled edge White to off white with orange to dark brown coloured speckles logo;30 logo carton1 carton2 figure1 figure2

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility In two, 24 month carcinogenicity studies, Sprague-Dawley rats were treated with oral lansoprazole doses of 5 to 150 mg/kg/day, about one to 40 times the exposure on a body surface (mg/m 2 ) basis of a 50 kg person of average height [1.46 m 2 body surface area (BSA)] given the recommended human dose of 30 mg/day. Lansoprazole produced dose-related gastric enterochromaffin-like (ECL) cell hyperplasia and ECL cell carcinoids in both male and female rats. It also increased the incidence of intestinal metaplasia of the gastric epithelium in both sexes. In male rats, lansoprazole produced a dose-related increase of testicular interstitial cell adenomas. The incidence of these adenomas in rats receiving doses of 15 to 150 mg/kg/day (four to 40 times the recommended human dose based on BSA) exceeded the low background incidence (range = 1.4 to 10%) for this strain of rat. In a 24 month carcinogenicity study, CD-1 mice were treated with oral lansoprazole doses of 15 to 600 mg/kg/day, two to 80 times the recommended human dose based on BSA. Lansoprazole produced a dose-related increased incidence of gastric ECL cell hyperplasia. It also produced an increased incidence of liver tumors (hepatocellular adenoma plus carcinoma). The tumor incidences in male mice treated with 300 and 600 mg/kg/day (40 to 80 times the recommended human dose based on BSA) and female mice treated with 150 to 600 mg/kg/day (20 to 80 times the recommended human dose based on BSA) exceeded the ranges of background incidences in historical controls for this strain of mice. Lansoprazole treatment produced adenoma of rete testis in male mice receiving 75 to 600 mg/kg/day (10 to 80 times the recommended human dose based on BSA). A 26 week p53 (+/-) transgenic mouse carcinogenicity study was not positive. Lansoprazole was positive in the Ames test and the in vitro human lymphocyte chromosomal aberration assay.Lansoprazole was not genotoxic in the ex vivo rat hepatocyte unscheduled DNA synthesis (UDS) test, the in vivo mouse micronucleus test, or the rat bone marrow cell chromosomal aberration test. Lansoprazole at oral doses up to 150 mg/kg/day (40 times the recommended human dose based on BSA) was found to have no effect on fertility and reproductive performance of male and female rats.

13 NONCLINICAL TOXICOLOGY 13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility In two, 24 month carcinogenicity studies, Sprague-Dawley rats were treated with oral lansoprazole doses of 5 to 150 mg/kg/day, about one to 40 times the exposure on a body surface (mg/m 2 ) basis of a 50 kg person of average height [1.46 m 2 body surface area (BSA)] given the recommended human dose of 30 mg/day. Lansoprazole produced dose-related gastric enterochromaffin-like (ECL) cell hyperplasia and ECL cell carcinoids in both male and female rats. It also increased the incidence of intestinal metaplasia of the gastric epithelium in both sexes. In male rats, lansoprazole produced a dose-related increase of testicular interstitial cell adenomas. The incidence of these adenomas in rats receiving doses of 15 to 150 mg/kg/day (four to 40 times the recommended human dose based on BSA) exceeded the low background incidence (range = 1.4 to 10%) for this strain of rat. In a 24 month carcinogenicity study, CD-1 mice were treated with oral lansoprazole doses of 15 to 600 mg/kg/day, two to 80 times the recommended human dose based on BSA. Lansoprazole produced a dose-related increased incidence of gastric ECL cell hyperplasia. It also produced an increased incidence of liver tumors (hepatocellular adenoma plus carcinoma). The tumor incidences in male mice treated with 300 and 600 mg/kg/day (40 to 80 times the recommended human dose based on BSA) and female mice treated with 150 to 600 mg/kg/day (20 to 80 times the recommended human dose based on BSA) exceeded the ranges of background incidences in historical controls for this strain of mice. Lansoprazole treatment produced adenoma of rete testis in male mice receiving 75 to 600 mg/kg/day (10 to 80 times the recommended human dose based on BSA). A 26 week p53 (+/-) transgenic mouse carcinogenicity study was not positive. Lansoprazole was positive in the Ames test and the in vitro human lymphocyte chromosomal aberration assay.Lansoprazole was not genotoxic in the ex vivo rat hepatocyte unscheduled DNA synthesis (UDS) test, the in vivo mouse micronucleus test, or the rat bone marrow cell chromosomal aberration test. Lansoprazole at oral doses up to 150 mg/kg/day (40 times the recommended human dose based on BSA) was found to have no effect on fertility and reproductive performance of male and female rats.

ANDA210465

Lansoprazole

lansoprazole

43598-560

HUMAN PRESCRIPTION DRUG

ORAL

12.4 Microbiology Microbiology Lansoprazole, clarithromycin and/or amoxicillin have been shown to be active against most strains of Helicobacter pylori in vitro and in clinical infections [see Indications and Usage ( 1.2 ) ]. Helicobacter pylori Pretreatment Resistance Clarithromycin pretreatment resistance (≥2 mcg/mL) was 9.5% (91/960) by E-test and 11.3% (12/106) by agar dilution in the dual and triple therapy clinical trials (M93-125, M93-130, M93-131, M95-392, and M95-399). Amoxicillin pretreatment susceptible isolates (≤0.25 mcg/mL) occurred in 97.8% (936/957) and 98% (98/100) of the patients in the dual and triple therapy clinical trials by E-test and agar dilution, respectively. Twenty-one of 957 patients (2.2%) by E-test, and two of 100 patients (2%) by agar dilution, had amoxicillin pretreatment MICs of greater than 0.25 mcg/mL. One patient on the 14 day triple therapy regimen had an unconfirmed pretreatment amoxicillin minimum inhibitory concentration (MIC) of greater than 256 mcg/mL by E-test and the patient was eradicated of H. pylori (Table 8). Table 8: Clarithromycin Susceptibility Test Results and Clinical/Bacteriological Outcomes * Clarithromycin Pretreatment Results Clarithromycin Post-treatment Results H. pylori negative- eradicated H. pylori positive – not eradicated Post-treatment susceptibility results S † I † R † No MIC Triple Therapy 14 Day (lansoprazole 30 mg twice daily/amoxicillin 1 g twice daily/clarithromycin 500 mg twice daily) (M95-399, M93-131, M95-392) Susceptible † 112 105 7 Intermediate † 3 3 Resistant † 17 6 7 4 Triple Therapy 10 Day (lansoprazole 30 mg twice daily/amoxicillin 1 g twice daily/clarithromycin 500 mg twice daily) (M95-399) Susceptible † 42 40 1 1 Intermediate † Resistant † 4 1 3 * Includes only patients with pretreatment clarithromycin susceptibility test results † Susceptible (S) MIC ≤0.25 mcg/mL, Intermediate (I) MIC 0.5 to 1 mcg/mL, Resistant (R) MIC ≥2 mcg/mL Patients not eradicated of H. pylori following lansoprazole/amoxicillin/clarithromycin triple therapy will likely have clarithromycin resistant H. pylori . Therefore, for those patients who fail therapy, clarithromycin susceptibility testing should be done when possible. Patients with clarithromycin resistant H. pylori should not be treated with lansoprazole/amoxicillin/clarithromycin triple therapy or with regimens which include clarithromycin as the sole antimicrobial agent. Amoxicillin Susceptibility Test Results and Clinical/Bacteriological Outcomes: In the dual and triple therapy clinical trials, 82.6% (195/236) of the patients that had pretreatment amoxicillin susceptible MICs (≤0.25 mcg/mL) were eradicated of H. pylori . Of those with pretreatment amoxicillin MICs of greater than 0.25 mcg/mL, three of six had the H. pylori eradicated. A total of 30% (21/70) of the patients failed lansoprazole 30 mg three times daily/amoxicillin 1 g three times daily dual therapy and a total of 12.8% (22/172) of the patients failed the 10 and 14 day triple therapy regimens. Post-treatment susceptibility results were not obtained on 11 of the patients who failed therapy. Nine of the 11 patients with amoxicillin post-treatment MICs that failed the triple therapy regimen also had clarithromycin resistant H. pylori isolates. Susceptibility Test for Helicobacter pylori: For susceptibility testing information about Helicobacter pylori, see Microbiology section in prescribing information for clarithromycin and amoxicillin.

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL Lansoprazole Delayed- Release Orally Disintsegrating Tablets, 15 mg Carton Label

17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Medication Guide and Instructions for Use). Advise patients to: Acute Tubulointerstitial Nephritis To call their healthcare provider if they experience signs and/or symptoms associated with acute tubulointerstitial nephritis [see Warnings and Precautions ( 5.2 ) ]. Clostridium difficile-Associated Diarrhea To immediately call their healthcare provider if they experience diarrhea that does not improve [see Warnings and Precautions ( 5.3 ) ]. Bone Fracture To report any fractures, especially of the hip, wrist or spine, to their healthcare provider [see Warnings and Precautions ( 5.4 ) ] Severe Cutaneous Adverse Reactions To discontinue lansoprazole delayed-release orally disintegrating tablets and immediately call their healthcare provider for further evaluation [see Warnings and Precautions ( 5.5 ) ]. Cutaneous and Systemic Lupus Erythematosus To immediately call their healthcare provider for any new or worsening of symptoms associated with cutaneous or systemic lupus erythematosus [see Warnings and Precautions ( 5.6 )]. Cyanocobalamin (Vitamin B12) Deficiency To report any clinical symptoms that may be associated with cyanocobalamin deficiency to their healthcare provider, if they have been receiving lansoprazole delayed-release orally disintegrating tablets for longer than three years [see War nings and Precautions ( 5.7 )]. Hypomagnesemia and Mineral Metabolism To report any clinical symptoms that may be associated with hypomagnesemia, hypocalcemia, and/or hypokalemia to their healthcare provider, if they have been receiving lansoprazole delayed-release orally disintegrating tablets for at least three months [see Warnings and Precautions ( 5.8 ) ]. Drug Interactions Advise patients to report to their healthcare provider if they are taking rilpivirine-containing products [ see Contraindications ( 4 )] or high-dose methotrexate [ see Warnings and Precautions ( 5.10 )] . Pregnancy Advise a pregnant woman of the potential risk to a fetus. Advise females of reproductive potential to inform their healthcare provider of a known or suspected pregnancy [see Use in Specific Populations ( 8.1 ) ]. Administration • Missed doses: If a dose is missed, administer as soon as possible. However, if the next scheduled dose is due, do not take the missed dose, and take the next dose on time. Do not take two doses at one time to make up for a missed dose. • Lansoprazole delayed-release orally disintegrating tablets should be taken before eating. • Do not crush or chew lansoprazole delayed-release orally disintegrating tablets. • Take lansoprazole delayed-release orally disintegrating tablets at least 30 minutes priorto sucralfate. • Phenylketonurics: Contains Phenylalanine 2.52 mg per 15 mg lansoprazole delayed-release orally disintegrating tablet and 5.04 mg per 30 mg lansoprazole delayed-release orally disintegrating tablet. Lansoprazole Delayed-Release Orally Disintegrating Tablets • Do not break or cut. • Place the tablet on the tongue; allow it to disintegrate, with or without water, until the particles can be swallowed. Do not chew the particles. • The tablet typically disintegrates in less than one minute. Alternatively, for children or other patients who have difficulty swallowing tablets, lansoprazole delayed-release orally disintegrating tablets can be administered with water via oral syringe or NG tube, as described in the Instructions for Use. Rx only Distributor: Dr. Reddy’s Laboratories Inc., Princeton NJ 08540 Made in India Revised: 07/2023

INSTRUCTIONS FOR USE Lansoprazole Delayed-Release Orally Disintegrating Tablets (lan soe' pra zole) Important: • Take lansoprazole delayed-release orally disintegrating tablets before meals. • Do not crush or chew lansoprazole delayed-release orally disintegrating tablets. • Lansoprazole delayed-release orally disintegrating tablets should only be used with the foods and juices listed below. Lansoprazole Delayed-Release Orally Disintegrating Tablets 1. Do not chew, crush, cut or break the tablets. 2. Put the tablet on the tongue and let it dissolve, with or without water. 3. Swallow after the tablet dissolves. 4. The tablet usually dissolves in less than 1 minute. For patients who have trouble swallowing tablets, lansoprazole delayed-release orally disintegrating tablets can be given as follows: Giving lansoprazole delayed-release orally disintegrating tablets with water using an oral syringe: 1. Put a 15 mg tablet in an oral syringe and draw up 4 mL of water into the oral syringe, or put a 30 mg tablet in an oral syringe and draw up 10 mL of water into the oral syringe. 2. Gently shake the oral syringe to mix the tablet and the water. 3. After the tablet is mixed in the water, place the tip of the oral syringe in the mouth. Give the medicine within 15 minutes of mixing. Do not save the tablet and water mixture for later use. 4. Refill the oral syringe with about 2 mL of water for the 15 mg tablet or 5 mL of water for the 30 mg tablet, and shake gently. Place the tip of the oral syringe in the mouth and give the medicine that is left in the syringe. Giving lansoprazole delayed-release orally disintegrating tablets with water through a nasogastric tube (NG tube) size 8 French or larger: 1. Put a 15 mg tablet in a catheter-tip syringe and draw up 4 mL of water, or put a 30 mg tablet in a catheter-tip syringe and draw up 10 mL of water. 2. Gently shake the catheter-tip syringe to mix the tablet and the water. 3. Connect the catheter-tip syringe to the NG tube. 4. Give the mixture right away through the NG tube that goes into the stomach. Give the medicine within 15 minutes of mixing. Do not save the granule and water mixture for later use. 5. Refill the catheter-tip syringe with about 5 mL of water and shake gently. Flush the NG tube with the water. How should I store lansoprazole delayed-release orally disintegrating tablets? • Store lansoprazole delayed-release orally disintegrating tablets at room temperature between 20° to 25° C (68° to 77° F) Keep lansoprazole delayed-release orally disintegrating tablets and all medicines out of the reach of children. This Instruction for Use has been approved by the U.S. Food and Drug Administration. All other trademark names are the property of their respective owners. Rx only Distributor: Dr. Reddy’s Laboratories Inc., Princeton NJ 08540 Made in India Revised: 07/2023

MEDICATION GUIDE Lansoprazole Delayed-Release Orally Disintegrating Tablets (lan soe' pra zole) What is the most important information that I should know about lansoprazole delayed-release orally disintegrating tablets? You should take lansoprazole delayed-release orally disintegrating tablets exactly as prescribed, at the lowest dose possible and for the shortest time needed. Lansoprazole delayed-release orally disintegrating tablets may help your acid-related symptoms, but you could still have serious stomach problems. Talk with your doctor. Lansoprazole delayed-release orally disintegrating tablets can cause serious side effects, including: A type of kidney problem (acute tubulointerstitial nephritis). Some people who take proton pump inhibitor (PPI) medicines, including lansoprazole delayed-release orally disintegrating tablets, may develop a kidney problem called acute tubulointerstitial nephritis that can happen at any time during treatment with PPI medicines including lansoprazole delayed-release orally disintegrating tablets. Call your doctor right away if you have a decrease in the amount that you urinate or if you have blood in your urine. Diarrhea caused by an infection (Clostridium difficile) in your intestines. Call your doctor right away if you have watery stools or stomach pain that does not go away. You may or may not have a fever. Bone fractures (hip, wrist, or spine). Bone fractures in the hip, wrist, or spine may happen in people who take multiple daily doses of PPI medicines and for a long period of time (a year or longer). Tell your doctor if you have a bone fracture, especially in the hip, wrist, or spine. Certain types of lupus erythematosus. Lupus erythematosus is an autoimmune disorder (the body’s immune cells attack other cells or organs in the body). Some people who take PPI medicines, including lansoprazole delayed-release orally disintegrating tablets, may develop certain types of lupus erythematosus or have worsening of the lupus they already have. Call your doctor right away if you have new or worsening joint pain or a rash on your cheeks or arms that gets worse in the sun. Talk to your doctor about your risk of these serious side effects. Lansoprazole delayed-release orally disintegrating tablets can have other serious side effects. See “What are the possible side effects of lansoprazole delayed-release orally disintegrating tablets?” What are lansoprazole delayed-release orally disintegrating tablets? A prescription medicine called a proton pump inhibitor (PPI) used to reduce the amount of acid in your stomach. In adults, lansoprazole delayed-release orally disintegrating tablets are used for: 4 weeks for the healing and symptom relief of duodenal ulcers. 10 to 14 days with certain antibiotics to treat an infection caused by bacteria called H. pylori. maintaining healing of duodenal ulcers. Lansoprazole has not been studied beyond 12 months for this purpose. up to 8 weeks for the healing and symptom relief of stomach ulcers. up to 8 weeks for the healing of stomach ulcers in people taking pain medicines called nonsteroidal anti-inflammatory drugs (NSAIDs). Lansoprazole has not been studied beyond 8 weeks for this purpose. reducing the risk of stomach ulcers in people who are at risk of developing stomach ulcers with NSAIDs. Lansoprazole has not been studied beyond 12 weeks for this purpose. up to 8 weeks to treat heartburn and other symptoms that happen with gastroesophageal reflux disease (GERD). GERD happens when acid in your stomach backs up into the tube (esophagus) that connects your mouth to your stomach. This may cause a burning feeling in your chest or throat, sour taste or burping. up to 8 weeks for the healing and symptom relief of acid-related damage to the lining of the esophagus (called erosive esophagitis or EE). Your doctor may prescribe another 8 to 16 weeks of lansoprazole delayed-release orally disintegrating tablets for patients whose EE does not improve or whose symptoms return. maintaining healing of EE. Lansoprazole has not been studied beyond 12 months for this purpose. the long-term treatment of conditions where your stomach makes too much acid. This includes a rare condition called Zollinger-Ellison syndrome. C hildren: Give lansoprazole delayed-release orally disintegrating tablets exactly as prescribed by your child’s doctor. Do not increase the dose of lansoprazole delayed-release orally disintegrating tablets or give your child lansoprazole delayed-release orally disintegrating tablets longer than the amount of time your doctor tells you to. In children 1 to 11 years of age, lansoprazole delayed-release orally disintegrating tablets are used for: up to 12 weeks to treat heartburn and other symptoms that can happen with GERD. up to 12 weeks for the healing and symptom relief of EE. In children 12 to 17 years of age, lansoprazole delayed-release orally disintegrating tablets are used for: up to 8 weeks to treat heartburn and other symptoms that can happen with GERD. up to 8 weeks for the healing and symptom relief of EE. Lansoprazole delayed-release orally disintegrating tablets are not recommended for treating the symptoms of GERD in children less than 1 year of age and may harm them. Do no t take lansoprazole delayed-release orally disintegrating tablets if you are: allergic to lansoprazole, any other PPI medicine, or any of the ingredients in lansoprazole delayed-release orally disintegrating tablets. See the end of this Medication Guide for a complete list of ingredients in lansoprazole delayed-release orally disintegrating tablets. taking a medicine that contains rilpivirine (EDURANT, COMPLERA, ODEFSEY, JULUCA) used to treat HIV-1 (Human Immunodeficiency Virus) Before you take lansoprazole delayed-release orally disintegrating tablets, tell your doctor about all of your medical conditions, including if you: have low magnesium, calcium, potassium or sodium levels in your blood or you are taking a diuretic. have liver problems. have phenylketonuria. Lansoprazole delayed-release orally disintegrating tablets contains aspartame. are pregnant, think you may be pregnant or plan to become pregnant. Lansoprazole delayed-release orally disintegrating tablets may harm your unborn baby. Talk to your doctor about the possible risks to an unborn baby if lansoprazole delayed-release orally disintegrating tablets are taken during pregnancy. are breastfeeding or plan to breastfeed. It is not known if lansoprazole passes into your breast milk. Talk to your doctor about the best way to feed your baby if you take lansoprazole delayed-release orally disintegrating tablets. Tell your doctor about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Especially tell your doctor if you take methotrexate (OTREXUP, RASUVO, TREXALL, REDITREX, XATMEP). How should I take lansoprazole delayed-release orally disintegrating tablets? Take lansoprazole delayed-release orally disintegrating tablets exactly as prescribed by your doctor. Do not change your dose or stop taking lansoprazole delayed-release orally disintegrating tablets without talking to your doctor. Take lansoprazole delayed-release orally disintegrating tablets before meals. Lansoprazole Delayed-Release Orally Disintegrating Tablets: Lansoprazole delayed-release orally disintegrating tablet is a tablet that melts in your mouth with or without water. Do not break, cut, crush or chew the tablets. See the “Instructions for Use” at the end of this Medication Guide for instructions on how to mix and give lansoprazole delayed-release orally disintegrating tablets through a syringe and NG tube. If you miss a dose of lansoprazole delayed-release orally disintegrating tablet take it as soon as you remember. If it is almost time for your next dose, do not take the missed dose. Take your next dose at your regular time. Do not take 2 doses at the same time. If you take too much lansoprazole delayed-release orally disintegrating tablets, call your doctor or your poison control center at 1-800-222-1222 right away or go to the nearest hospital emergency room. What are the possible side effects of lansoprazole delayed-release orally disintegrating tablets? Lansoprazole delayed-release orally disintegrating tablets can cause serious side effects, including: • See “What is the most important information that I should know about lansoprazole delayed-release orally disintegrating tablets?” Low vitamin B12 levels in the body can happen in people who have taken lansoprazole delayed-release orally disintegrating tablets for a long time (more than 3 years). Tell your doctor if you have symptoms of low vitamin B12 levels, including shortness of breath, lightheadedness, irregular heartbeat, muscle weakness, pale skin, feeling tired, mood changes, and tingling or numbness in the arms and legs. L ow magnesium levels in the body can happen in people who have taken lansoprazole for at least 3 months. Tell your doctor right away if you have symptoms of low magnesium levels, including seizures, dizziness, irregular heartbeat, jitteriness, muscle aches or weakness, and spasms of hands, feet or voice. Stomach growths (fundic gland polyps). People who take PPI medicines for a long time have an increased risk of developing a certain type of stomach growth called fundic gland polyps, especially after taking PPI medicines for more than 1 year. Severe skin reactions. Lansoprazole delayed-release orally disintegrating tablets can cause rare but severe skin reactions that may affect any part of your body. These serious skin reactions may need to be treated in a hospital and may be life threatening: Skin rash which may have blistering, peeling or bleeding on any part of your skin (including your lips, eyes, mouth, nose, genitals, hands or feet). You may also have fever, chills, body aches, shortness of breath, or enlarged lymph nodes. Stop taking lansoprazole delayed-release orally disintegrating tablets and call your doctor right away. These symptoms may be the first sign of a severe skin reaction. Th e most common side effects of lansoprazole delayed-release orally disintegrating tablets include: diarrhea, stomach-area (abdomen) pain, nausea and constipation. These are not all the possible side effects of lansoprazole delayed-release orally disintegrating tablets. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. How should I store lansoprazole delayed-release orally disintegrating tablets? Store lansoprazole delayed-release orally disintegrating tablets at room temperature between 20° to 25° C (68° to 77° F) Keep lansoprazole delayed-release orally disintegrating tablets and all medicines out of the reach of children. General information about the safe and effective use of lansoprazole delayed-release orally disintegrating tablets Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use lansoprazole delayed-release orally disintegrating tablets for conditions for which it was not prescribed. Do not give lansoprazole delayed-release orally disintegrating tablets to other people, even if they have the same symptoms that you have. It may harm them. You can ask your doctor or pharmacist for information about lansoprazole delayed-release orally disintegrating tablets that is written for health professionals. What are the ingredients in lansoprazole delayed-release orally disintegrating tablets? Active ingredient: lansoprazole. Inactive ingredients in lansoprazole delayed-release orally disintegrating tablets Aspartame, citric acid anhydrous powder, crospovidone, ethyl acrylate and methyl methacrylate copolymer dispersion, glyceryl monostearate, hydroxypropyl methyl cellulose 3cps, hydroxypropyl methyl cellulose 15cps, hydroxypropyl cellulose, low substituted hydroxypropyl cellulose, iron oxide red, iron oxide yellow, magnesium carbonate, mannitol, magnesium stearate, methylacrylic acid ethyl acrylate copolymer dispersion, microcrystalline cellulose, polyethylene glycol, polysorbate 80, sodium hydroxide, strawberry guarana flavour, sugar spheres, talc, titanium dioxide, and triehtyl citrate. Lansoprazole delayed-release orally disintegrating tablets contains 2.52 mg of phenylalanine in each 15 mg tablet and 5.04 mg of phenylalanine in each 30 mg tablet. Distributor: Dr. Reddy’s Laboratories Inc., Princeton NJ 08540 Made in India All other trademark names are the property of their respective owners. For more information, call 1-888-375-3784. This Medication Guide has been approved by the U.S. Food and Drug Administration. To reorder additional Medication Guides, contact Dr. Reddy’s Customer Service at 1-866-733-3952. Revised: 07/2023

14 CLINICAL STUDIES 14.1 Duodenal Ulcer In a U.S. multicenter, double-blind, placebo-controlled, dose-response (15, 30, and 60 mg of lansoprazole once daily) study of 284 patients with endoscopically documented duodenal ulcer, the percentage of patients healed after two and four weeks was significantly higher with all doses of lansoprazole than with placebo. There was no evidence of a greater or earlier response with the two higher doses compared with lansoprazole 15 mg. Based on this study and the second study described below, the recommended dose of lansoprazole in duodenal ulcer is 15 mg per day (Table 9). Table 9: Duodenal Ulcer Healing Rates Placebo (N=72) Lansoprazole Week 15 mg daily (N=68) 30 mg daily (N=74) 60 mg daily (N=70) 2 42.4%* 35.6%* 39.1%* 11.3% 4 89.4%* 91.7%* 89.9%* 46.1% * (p≤0.001) vs placebo. Lansoprazole 15 mg was significantly more effective than placebo in relieving day and nighttime abdominal pain and in decreasing the amount of antacid taken per day. In a second U.S. multicenter study, also double-blind, placebo-controlled, dose-comparison (15 and 30 mg of lansoprazole once daily), and including a comparison with ranitidine, in 280 patients with endoscopically documented duodenal ulcer, the percentage of patients healed after four weeks was significantly higher with both doses of lansoprazole than with placebo. There was no evidence of a greater or earlier response with the higher dose of lansoprazole. Although the 15 mg dose of lansoprazole was superior to ranitidine at four weeks, the lack of significant difference at two weeks and the absence of a difference between 30 mg of lansoprazole and ranitidine leaves the comparative effectiveness of the two agents undetermined (Table 10) [see Indications and Usage ( 1.1 ) ]. Table 10: Duodenal Ulcer Healing Rates Lansoprazole Ranitidine Placebo (N=41) Week 15 mg daily (N=80) 30 mg daily (N=77) 300 mg h.s. (N= 82) 2 35% 44.2% 30.5% 34.2% 4 92.3%* 80.3% † 70.5% † 47.5% *(p≤ 0.05) vs placebo and ranitidine. † (p≤ 0.05) vs placebo. 14.2 Eradication of H. pylori to Reduce the Risk of Duodenal Ulcer Recurrence Randomized, double-blind clinical studies performed in the U.S. in patients with H. pylori and duodenal ulcer disease (defined as an active ulcer or history of an ulcer within one year) evaluated the efficacy of lansoprazole in combination with amoxicillin and clarithromycin as triple 14 day therapy or in combination with amoxicillin as dual 14 day therapy for the eradication of H. pylori. Based on the results of these studies, the safety and efficacy of two different eradication regimens were established: Triple therapy: Lansoprazole 30 mg twice daily/amoxicillin 1 g twice daily/clarithromycin 500 mg twice daily Dual therapy: Lansoprazole 30 mg three times daily/amoxicillin 1 g three times daily All treatments were for 14 days. H. pylori eradication was defined as two negative tests (culture and histology) at four to six weeks following the end of treatment. Triple therapy was shown to be more effective than all possible dual therapy combinations. Dual therapy was shown to be more effective than both monotherapies. Eradication of H. pylori has been shown to reduce the risk of duodenal ulcer recurrence. A randomized, double-blind clinical study performed in the U.S. in patients with H. pylori and duodenal ulcer disease (defined as an active ulcer or history of an ulcer within one year) compared the efficacy of lansoprazole triple therapy for 10 and 14 days. This study established that the 10 day triple therapy was equivalent to the 14 day triple therapy in eradicating H. pylori (Tables 11 and 12) [see Indications and Usage ( 1.2 ) ]. Table 11: H. pylor i Eradication Rates – Triple Therapy (Lansoprazole/amoxicillin/clarithromycin) Percent of Patients Cured [95% Confidence Interval] (Number of patients) Study Duration Triple Therapy Evaluable Analysis* Triple Therapy Intent-to-Treat Analysis † M93-131 14 days 92 ‡ [80 to 97.7] (N=48) 86 ‡ [73.3 to 93.5] (N=55) M95-392 14 days 86 § [75.7 to 93.6] (N=66) 83 § [72 to 90.8] (N=70) M95-399 ¶ 14 days 85 [77 to 91] (N=113) 82 [73.9 to 88.1] (N=126) 10 days 84 [76 to 89.8] (N=123) 81 [73.9 to 87.6] (N=135) *Based on evaluable patients with confirmed duodenal ulcer (active or within one year) and H. pylori infection at baseline defined as at least two of three positive endoscopic tests from CLOtest, histology and/or culture. Patients were included in the analysis if they completed the study. Additionally, if patients dropped out of the study due to an adverse event related to the study drug, they were included in the evaluable analysis as failures of therapy. † Patients were included in the analysis if they had documented H. pylori infection at baseline as defined above and had a confirmed duodenal ulcer (active or within one year). All dropouts were included as failures of therapy. ‡ (p<0.05) vs lansoprazole/amoxicillin and lansoprazole/clarithromycin dual therapy. § (p<0.05) vs clarithromycin/amoxicillin dual therapy. ¶ The 95% confidence interval for the difference in eradication rates, 10 day minus 14 day is (-10.5, 8.1) in the evaluable analysis and (-9.7, 9.1) in the intent-to-treat analysis. Table 12 : H. pylori Eradication Rates – 14 Day Dual Therapy (lansoprazole/amoxicillin) Percent of Patients Cured [95% Confidence Interval] (Number of patients) Study Dual Therapy Evaluable Analysis* Dual Therapy Intent-to-Treat Analysis † M93-131 77 ‡ [62.5 to 87.2] (N=51) 70 ‡ [56.8 to 81.2] (N=60) M93-125 66 § [51.9 to 77.5] (N=58) 61 § [48.5 to 72.9] (N=67) * Based on evaluable patients with confirmed duodenal ulcer (active or within one year) and H. pylori infection at baseline defined as at least two of three positive endoscopic tests from CLOtest, histology and/or culture. Patients were included in the analysis if they completed the study. Additionally, if patients dropped out of the study due to an adverse event related to the study drug, they were included in the analysis as failures of therapy. † Patients were included in the analysis if they had documented H. pylori infection at baseline as defined above and had a confirmed duodenal ulcer (active or within one year). All dropouts were included as failures of therapy. ‡ (p<0.05) vs lansoprazole alone. § (p<0.05) vs lansoprazole alone or amoxicillin alone. 14.3 Maintenance of Healed Duodenal Ulcers Lansoprazole has been shown to prevent the recurrence of duodenal ulcers. Two independent, double-blind, multicenter, controlled trials were conducted in patients with endoscopically confirmed healed duodenal ulcers. Patients remained healed significantly longer and the number of recurrences of duodenal ulcers was significantly less in patients treated with lansoprazole than in patients treated with placebo over a 12 month period (Table 13) [see Indications and Usage ( 1.3 ) ]. Table 13: Endoscopic Remission Rates Trial Drug No. of Pts. Percent in Endoscopic Remission 0 to 3 mo. 0 to 6 mo. 0 to 12 mo. #1 Lansoprazole 15 mg daily 86 90% * 87% * 84% * Placebo 83 49% 41% 39% #2 Lansoprazole 30 mg daily 18 94% * 94% * 85% * Lansoprazole 15 mg daily 15 87% * 79% * 70% * Placebo 15 33% 0% 0% %=Life Table Estimate * (p≤ 0.001) vs placebo. In trial #2, no significant difference was noted between lansoprazole 15 and 30 mg in maintaining remission. 14.4 Gastric Ulcer In a U.S. multicenter, double-blind, placebo-controlled study of 253 patients with endoscopically documented gastric ulcer, the percentage of patients healed at four and eight weeks was significantly higher with lansoprazole 15 and 30 mg once a day than with placebo (Table 14) [see Indications and Usage ( 1.4 ) ]. Table 14: Gastric Ulcer Healing Rates Week Lansoprazole Placebo (N=64) 15 mg daily (N=65) 30 mg daily (N=63) 60 mg daily (N=61) 4 64.6%* 58.1%* 53.3%* 37.5% 8 92.2%* 96.8%* 93.2%* 76.7% *(p≤0.05) vs placebo. Patients treated with any lansoprazole dose reported significantly less day and night abdominal pain along with fewer days of antacid use and fewer antacid tablets used per day than the placebo group. Independent substantiation of the effectiveness of lansoprazole 30 mg was provided by a meta-analysis of published and unpublished data. 14.5 Healing of NSAID-Associated Gastric Ulcer In two U.S. and Canadian multicenter, double-blind, active-controlled studies in patients with endoscopically confirmed NSAID-associated gastric ulcer who continued their NSAID use, the percentage of patients healed after eight weeks was statistically significantly higher with 30 mg of lansoprazole than with the active control. A total of 711 patients were enrolled in the study, and 701 patients were treated. Patients ranged in age from 18 to 88 years (median age 59 years), with 67% female patients and 33% male patients. Race was distributed as follows: 87% Caucasian, 8% Black, 5% Other. There was no statistically significant difference between lansoprazole 30 mg daily and the active control on symptom relief (i.e., abdominal pain) (Table 15) [see Indications and Usage ( 1.5 ) ]. Table 15: NSAID-Associated Gastric Ulcer Healing Rates * Study #1 Lansoprazole 30 mg daily Active Control † Week 4 60% (53/88) ‡ 28% (23/83) Week 8 79% (62/79) ‡ 55% (41/74) Study #2 Lansoprazole 30 mg daily Active Control † Week 4 53% (40/75) 38% (31/82) Week 8 77% (47/61) ‡ 50% (33/66) *Actual observed ulcer(s) healed at time points ±2 days † Dose for healing of gastric ulcer. ‡ (p≤0.05) vs the active control. 14.6 Risk Reduction of NSAID-Associated Gastric Ulcer In one large U.S., multicenter, double-blind, placebo-and misoprostol-controlled (misoprostol blinded only to the endoscopist) study in patients who required chronic use of an NSAID and who had a history of an endoscopically documented gastric ulcer, the proportion of patients remaining free from gastric ulcer at four, eight, and 12 weeks was significantly higher with 15 or 30 mg of lansoprazole than placebo. A total of 537 patients were enrolled in the study, and 535 patients were treated. Patients ranged in age from 23 to 89 years (median age 60 years), with 65% female patients and 35% male patients. Race was distributed as follows: 90% Caucasian, 6% Black, 4% Other. The 30 mg dose of lansoprazole demonstrated no additional benefit in risk reduction of the NSAID-associated gastric ulcer than the 15 mg dose (Table 16) [see Indications and Usage ( 1.6 ) ]. Table 16: Proportion of Patients Remaining Free of Gastric Ulcers* Week Lansoprazole 15 mg daily (N=121) Lansoprazole 30 mg daily (N=116) Misoprostol 200 mcg four times daily (N=106) Placebo (N=112) 4 90% 92% 96% 66% 8 86% 88% 95% 60% 12 80% 82% 93% 51% * % = Life Table Estimate (p<0.001) Lansoprazole 15 mg daily vs placebo; Lansoprazole 30 mg daily vs placebo; and misoprostol 200 mcg four times daily vs placebo. (p<0.05) Misoprostol 200 mcg four times daily vs Lansoprazole 15 mg daily; and misoprostol 200 mcg four times daily vs Lansoprazole 30 mg daily. 14.7 Symptomatic Gastroesophageal Reflux Disease (GERD) Symptomatic GERD: In a U.S. multicenter, double-blind, placebo-controlled study of 214 patients with frequent GERD symptoms, but no esophageal erosions by endoscopy, significantly greater relief of heartburn associated with GERD was observed with the administration of lansoprazole 15 mg once daily up to eight weeks than with placebo. No significant additional benefit from lansoprazole 30 mg once daily was observed. The intent-to-treat analyses demonstrated significant reduction in frequency and severity of day and night heartburn. Data for frequency and severity for the eight week treatment period are presented in Table 17 and in Figures 1 and 2: Table 17: Frequency of Heartburn Variable Placebo (n=43) Lansoprazole 15 mg (n=80) Lansoprazole 30 mg (n=86) Median % of Days without Heartburn Week 1 0% 71 %* 46%* Week 4 11% 81%* 76%* Week 8 13% 84%* 82%* % of Nights without Heartburn Week 1 17% 86%* 57%* Week 4 25% 89%* 73%* Week 8 36% 92%* 80%* *(p<0.01) vs placebo. Figure 1 Figure 2 In two U.S., multicenter double-blind, ranitidine-controlled studies of 925 total patients with frequent GERD symptoms, but no esophageal erosions by endoscopy, lansoprazole 15 mg was superior to ranitidine 150 mg (twice daily) in decreasing the frequency and severity of day and night heartburn associated with GERD for the eight week treatment period. No significant additional benefit from lansoprazole 30 mg once daily was observed [see Indications and Usage ( 1.7 ) ]. 14.8 Erosive Esophagitis In a U.S. multicenter, double-blind, placebo-controlled study of 269 patients entering with an endoscopic diagnosis of esophagitis with mucosal grading of two or more and grades three and four signifying erosive disease, the percentages of patients with healing are presented in Table 18. Table 18: Erosive Esophagitis Healing Rates Week Lansoprazole Placebo (N=63) 15 mg daily (N=69) 30 mg daily (N=65) 60 mg daily (N=72) 4 67.6%* 81.3%*† 80.6%*† 32.8% 6 87.7%* 95.4%* 94.3%* 52.5% 8 90.9%* 95.4%* 94.4%* 52.5% * (p≤0.001) vs placebo. † (p≤0.05) vs Lansoprazole 15 mg. In this study, all lansoprazole groups reported significantly greater relief of heartburn and less day and night abdominal pain along with fewer days of antacid use and fewer antacid tablets taken per day than the placebo group. Although all doses were effective, the earlier healing in the higher two doses suggests 30 mg daily as the recommended dose. Lansoprazole was also compared in a U.S. multicenter, double-blind study to a low dose of ranitidine in 242 patients with erosive reflux esophagitis. Lansoprazole at a dose of 30 mg was significantly more effective than ranitidine 150 mg twice daily as shown below (Table 19). Table 19: Erosive Esophagitis Healing Rates Week Lansoprazole 30 mg daily (N=115) Ranitidine 150 mg twice daily (N=127) 2 66.7%* 38.7% 4 82.5%* 52.0% 6 93.0%* 67.8% 8 92.1%* 69.9% * (p≤0.001) vs ranitidine. In addition, patients treated with lansoprazole reported less day and nighttime heartburn and took less antacid tablets for fewer days than patients taking ranitidine 150 mg twice daily. Although this study demonstrates effectiveness of lansoprazole in healing erosive esophagitis, it does not represent an adequate comparison with ranitidine because the recommended ranitidine dose for esophagitis is 150 mg four times daily, twice the dose used in this study. In the two trials described and in several smaller studies involving patients with moderate to severe erosive esophagitis, lansoprazole produced healing rates similar to those shown above. In a U.S. multicenter, double-blind, active-controlled study, 30 mg of lansoprazole was compared with ranitidine 150 mg twice daily in 151 patients with erosive reflux esophagitis that was poorly responsive to a minimum of 12 weeks of treatment with at least one H 2 -receptor antagonist given at the dose indicated for symptom relief or greater, namely, cimetidine 800 mg/day, ranitidine 300 mg/day, famotidine 40 mg/day or nizatidine 300 mg/day. Lansoprazole 30 mg was more effective than ranitidine 150 mg twice daily in healing reflux esophagitis, and the percentage of patients with healing were as follows. This study does not constitute a comparison of the effectiveness of histamine H 2 -receptor antagonists with lansoprazole, as all patients had demonstrated unresponsiveness to the histamine H 2 -receptor antagonist mode of treatment. It does indicate, however, that lansoprazole may be useful in patients failing on a histamine H 2 -receptor antagonist (Table 20) [see Indications and Usage ( 1.7 ) ]. Table 20: Reflux Esophagitis Healing Rates in Patients Poorly Responsive to Histamine H 2 -Receptor Antagonist Therapy Week Lansoprazole 30 mg daily (N=100) Ranitidine 150 mg twice daily (N=51) 4 74.7%* 42.6% 8 83.7%* 32.0% * (p≤ 0.001) vs ranitidine 14.9 Maintenance of Healing of Erosive Esophagitis Two independent, double-blind, multicenter, controlled trials were conducted in patients with endoscopically confirmed healed esophagitis. Patients remained in remission significantly longer and the number of recurrences of erosive esophagitis was significantly less in patients treated with lansoprazole than in patients treated with placebo over a 12 month period (Table 21). Table 21: Endoscopic Remission Rates Percent in Endoscopic Remission Trial Drug No. of Pts. 0 to 3 mo. 0 to 6 mo. 0 to 12 mo. #1 Lansoprazole 15 mg daily 59 83%* 81%* 79%* Lansoprazole 30 mg daily 56 93%* 93%* 90%* Placebo 55 31% 27% 24% #2 Lansoprazole 15 mg daily 50 74%* 72%* 67%* Lansoprazole 30 mg daily 49 75%* 72%* 55%* Placebo 47 16% 13% 13% %=Life Table Estimate * (p≤0.001) vs placebo. Regardless of initial grade of erosive esophagitis, lansoprazole 15 and 30 mg were similar in maintaining remission. In a U.S., randomized, double-blind study, lansoprazole 15 mg daily (n = 100) was compared with ranitidine 150 mg twice daily (n = 106), at the recommended dosage, in patients with endoscopically-proven healed erosive esophagitis over a 12 month period. Treatment with lansoprazole resulted in patients remaining healed (Grade 0 lesions) of erosive esophagitis for significantly longer periods of time than those treated with ranitidine (p<0.001). In addition, lansoprazole was significantly more effective than ranitidine in providing complete relief of both daytime and nighttime heartburn. Patients treated with lansoprazole remained asymptomatic for a significantly longer period of time than patients treated with ranitidine [see Indications and Usage ( 1.9 ) ]. 14.10 Pathological Hypersecretory Conditions Including Zollinger-Ellison Syndrome In open studies of 57 patients with pathological hypersecretory conditions, such as Zollinger-Ellison syndrome (ZES) with or without multiple endocrine adenomas, lansoprazole significantly inhibited gastric acid secretion and controlled associated symptoms of diarrhea, anorexia and pain. Doses ranging from 15 mg every other day to 180 mg per day maintained basal acid secretion below 10 mEq/hr in patients without prior gastric surgery and below 5 mEq/hr in patients with prior gastric surgery. Initial doses were titrated to the individual patient need, and adjustments were necessary with time in some patients [see Dosage and Administration ( 2.1 ) ]. Lansoprazole was well-tolerated at these high-dose levels for prolonged periods (greater than four years in some patients). In most ZES patients, serum gastrin levels were not modified by lansoprazole. However, in some patients, serum gastrin increased to levels greater than those present prior to initiation of lansoprazole therapy [see Indications and Usage ( 1.10 ) ].

8.5 Geriatric Use Of the total number of patients (n=21,486) in clinical studies of lansoprazole, 16% of patients were aged 65 years and over, while 4% were 75 years and over. No overall differences in safety or effectiveness were observed between these patients and younger patients and other reported clinical experience has not identified significant differences in responses between geriatric and younger patients, but greater sensitivity of some older individuals cannot be ruled out [see Clinical Pharmacology ( 12.3 ) ].

8.4 Pediatric Use The safety and effectiveness of lansoprazole delayed-release orally disintegrating tablets have been established in pediatric patients one year to 17 years of age for short-term treatment of symptomatic GERD and erosive esophagitis. In clinical studies of symptomatic GERD and erosive esophagitis, lansoprazole was not administered beyond 12 weeks in patients one year to 11 years of age. It is not known if lansoprazole delayed-release orally disintegrating tablets are safe and effective if used longer than the recommended duration. Do not exceed the recommended dose and duration of use in pediatric patients (see Juvenile Animal Toxicity Data). Lansoprazole was not effective in pediatric patients with symptomatic GERD one month to less than one year of age in a multicenter, double-blind, placebo-controlled study. Therefore, safety and effectiveness have not been established in patients less than one year of age. Nonclinical studies in juvenile rats have demonstrated an adverse effect of heart valve thickening and bone changes at lansoprazole doses higher than the maximum recommended equivalent human dose. Neonate to less than one year of age The pharmacokinetics of lansoprazole were studied in pediatric patients with GERD aged less than 28 days and one to 11 months. Compared to healthy adults receiving 30 mg, neonates had higher exposure (mean weight-based normalized AUC values 2.04 and 1.88 fold higher at doses of 0.5 and 1 mg/kg/day, respectively). Infants aged ≤10 weeks had clearance and exposure values that were similar to neonates. Infants aged greater than 10 weeks who received 1 mg/kg/day had mean AUC values that were similar to adults who received a 30 mg dose. Lansoprazole was not found to be effective in a U.S. and Polish four week multicenter, double-blind, placebo-controlled, parallel-group study of 162 patients between one month and less than 12 months of age with symptomatic GERD based on a medical history of crying/fussing/irritability associated with feedings who had not responded to conservative GERD management (i.e., nonpharmacologic intervention) for seven to 14 days. Patients received lansoprazole as a suspension daily (0.2 to 0.3 mg/kg/day in infants ≤10 weeks of age or 1 to 1.5 mg/kg/day in infants greater than 10 weeks or placebo) for up to four weeks of double-blind treatment. The primary efficacy endpoint was assessed by greater than 50% reduction from baseline in either the percent of feedings with a crying/fussing/irritability episode or the duration (minutes) of a crying/fussing/irritability episode within one hour after feeding. There was no difference in the percentage of responders between the lansoprazole pediatric suspension group and placebo group (54% in both groups). There were no adverse events reported in pediatric clinical studies (one month to less than 12 months of age) that were not previously observed in adults. Based on the results of the Phase 3 efficacy study, lansoprazole was not shown to be effective. Therefore, these results do not support the use of lansoprazole in treating symptomatic GERD in infants. One year to 11 years of age In an uncontrolled, open-label, U.S. multi-center study, 66 pediatric patients (one year to 11 years of age) with GERD were assigned, based on body weight, to receive an initial dose of either lansoprazole 15 mg daily if <30 kg or lansoprazole 30 mg daily if greater than 30 kg administered for eight to 12 weeks. The lansoprazole dose was increased (up to 30 mg twice daily) in 24 of 66 pediatric patients after two or more weeks of treatment if they remained symptomatic. At baseline, 85% of patients had mild to moderate overall GERD symptoms (assessed by investigator interview), 58% had non-erosive GERD and 42% had erosive esophagitis (assessed by endoscopy). After eight to 12 weeks of lansoprazole treatment, the intent-to-treat analysis demonstrated an approximate 50% reduction in frequency and severity of GERD symptoms. Twenty one of 27 erosive esophagitis patients were healed at eight weeks and 100% of patients were healed at 12 weeks by endoscopy (Table 4). Table 4: GERD Symptom Improvement and Erosive Esophagitis Healing Rates in Pediatric Patients Age 1 Year to 11 Years of Age GERD Final Visit * % (n/N) Symptomatic GERD Improvement in Overall GERD Symptoms † 76% (47/62 ‡ ) Erosive Esophagitis Improvement in Overall GERD Symptoms † Healing Rate 81% (22/27) 100% (27/27) * At Week 8 or Week 12 † Symptoms assessed by patients diary kept by caregiver. ‡ No data were available for four pediatric patients. In a study of 66 pediatric patients in the age group one year to 11 years old after treatment with lansoprazole given orally in doses of 15 mg daily to 30 mg twice daily, increases in serum gastrin levels were similar to those observed in adult studies. Median fasting serum gastrin levels increased 89% from 51 pg/mL at baseline to 97 pg/mL [interquartile range (25 th to 75 th percentile) of 71 to 130 pg/mL] at the final visit. The pediatric safety of lansoprazole capsules has been assessed in 66 pediatric patients aged oneto 11 years of age. Of the 66 patients with GERD, 85% (56/66) took lansoprazole for eight weeksand 15% (10/66) took it for 12 weeks. The most frequently reported (two or more patients) treatment-related adverse reactions in patients one to 11 years of age (N=66) were constipation (5%) and headache (3%). Twelve years to 17 years of age In an uncontrolled, open-label, U.S. multicenter study, 87 adolescent patients (12 years to 17 years of age) with symptomatic GERD were treated with lansoprazole for eight to 12 weeks. Baseline upper endoscopies classified these patients into two groups: 64 (74%) non-erosive GERD and 23 (26%) erosive esophagitis (EE). The non-erosive GERD patients received lansoprazole 15 mg daily for eight weeks and the EE patients received lansoprazole 30 mg daily for eight to 12 weeks. At baseline, 89% of these patients had mild to moderate overall GERD symptoms (assessed by investigator interviews). During eight weeks of lansoprazole treatment, adolescent patients experienced a 63% reduction in frequency and a 69% reduction in severity of GERD symptoms based on diary results. Twenty-one of 22 (95.5%) adolescent erosive esophagitis patients were healed after eight weeks of lansoprazole treatment. One patient remained unhealed after 12 weeks of treatment (Table 5). Table 5: GERD Symptom Improvement and Erosive Esophagitis Healing Rates in Pediatric Patients Age 12 to Years to 17 Years of Age GERD Final Visit % (n/N) Symptomatic GERD (All Patients) Improvement in Overall GERD Symptoms* 73.2% (60/82) † Non-erosive GERD Improvement in Overall GERD Symptoms* 71.2% (42/59) † Erosive Esophagitis Improvement in Overall GERD Symptoms* Healing Rate ‡ 78.3% (18/23) 95.5% (21/22) ‡ *Symptoms assessed by patient diary (parents/caregivers as necessary). † No data available for five patients. ‡ Data from one healed patient was excluded from this analysis due to timing of final endoscopy. In these 87 adolescent patients, increases in serum gastrin levels were similar to those observed in adult studies, median fasting serum gastrin levels increased 42% from 45 pg/mL at baseline to 64 pg/mL [interquartile range (25 th to 75 th percentile) of 44 to 88 pg/mL] at the final visit. (Normal serum gastrin levels are 25 to 111 pg/mL). The safety of lansoprazole delayed-release capsules has been assessed in these 87 adolescent patients. Of the 87 adolescent patients with GERD, 6% (5/87) took lansoprazole for less than six weeks, 93% (81/87) for six to 10 weeks, and 1% (1/87) for greater than 10 weeks. The most frequently reported (at least 3%) treatment-related adverse reactions in these patients were headache (7%), abdominal pain (5%), nausea (3%) and dizziness (3%). Treatment-related dizziness, reported in this prescribing information as occurring in less than 1% of adult patients, was reported in this study by three adolescent patients with non-erosive GERD, who had dizziness concurrently with other reactions (such as migraine, dyspnea, and vomiting). Juvenile Animal Toxicity Data Heart Valve Thickening In two oral toxicity studies, thickening of the mitral heart valve occurred in juvenile rats treated with lansoprazole. Heart valve thickening was observed primarily with oral dosing initiated on postnatal Day 7 (age equivalent to neonatal humans) and postnatal Day 14 (human age equivalent of approximately one year) at doses of 250 mg/kg/day and higher (at postnatal Day 7 and postnatal Day 14, respectively 6.2 times and 4.2 times the daily pediatric dose of 15 mg in pediatric patients age one to 11 years weighing 30 kg or less, based on AUC). The treatment durations associated with heart valve thickening ranged from 5 days to 8 weeks. The findings reversed or trended towards reversibility after a 4-week drug-free recovery period. The incidence of heart valve thickening after initiation of dosing on postnatal Day 21 (human age equivalent of approximately two years) was limited to a single rat (1/24) in groups given 500 mg/kg/day for 4 or 8 weeks (approximately 5.2 times the daily pediatric dose of 15 mg in pediatric patients age one to 11 years weighing 30 kg or less, based on AUC). Based on exposure margins, the risk of heart valve injury does not appear to be relevant to patients one year of age and older. Bone Changes In an eight-week oral toxicity study in juvenile rats with dosing initiated on postnatal Day 7, doses equal to or greater than 100 mg/kg/day (2.5 times the daily pediatric dose of 15 mg in children age one to 11 years weighing 30 kg or less, based on AUC) produced delayed growth, with impairment of weight gain observed as early as postnatal Day 10 (age equivalent to neonatal humans). At the end of treatment, the signs of impaired growth at 100 mg/kg/day and higher included reductions in body weight (14 to 44% compared to controls), absolute weight of multiple organs, femur weight, femur length, and crown-rump length. Femoral growth plate thickness was reduced only in males and only at the 500 mg/kg/day dose. The effects related to delayed growth persisted through the end of the four-week recovery period. Longer term data were not collected.

8.1 Pregnancy Risk Summary Available data from published observational studies overall do not indicate an association of adverse pregnancy outcomes with lansoprazole treatment ( see Data ). In animal reproduction studies, oral administration of lansoprazole to rats during organogenesis through lactation at 6.4 times the maximum recommended human dose produced reductions in the offspring in femur weight, femur length, crown-rump length and growth plate thickness (males only) on postnatal Day 21 (see Data). These effects were associated with reduction in body weight gain. Advise pregnant women of the potential risk to the fetus. The estimated background risk of major birth defects and miscarriage for the indicated populations are unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. If lansoprazole delayed-release orally disintegrating tablets are administered with clarithromycin, the pregnancy information for clarithromycin also applies to the combination regimen. Refer to the prescribing information for clarithromycin for more information on use in pregnancy. Data Human Data Available data from published observational studies failed to demonstrate an association of adverse pregnancy-related outcomes and lansoprazole use. Methodological limitations of these observational studies cannot definitely establish or exclude any drug-associated risk during pregnancy. In a prospective study by the European Network of Teratology Information Services, outcomes from a group of 62 pregnant women administered median daily doses of 30 mg of lansoprazole were compared to a control group of 868 pregnant women who did not take any PPIs. There was no difference in the rate of major malformations between women exposed to PPIs and the control group, corresponding to a Relative Risk (RR) =1.04, [95% Confidence Interval (CI) 0.25 to 4.21]. In a population-based retrospective cohort study covering all live births in Denmark from 1996 to 2008, there was no significant increase in major birth defects during analysis of first trimester exposure to lansoprazole in 794 live births. A meta-analysis that compared 1,530 pregnant women exposed to PPIs in at least the first trimester with 133,410 unexposed pregnant women showed no significant increases in risk for congenital malformations or spontaneous abortion with exposure to PPIs (for major malformations Odds Ratio (OR)=1.12, [95% CI 0.86 to 1.45] and for spontaneous abortions OR=1.29, [95% CI 0.84 to 1.97]). Animal Data No adverse effects on embryo-fetal development occurred in studies performed in pregnant rats at oral lansoprazole doses up to 150 mg/kg/day (40 times the recommended human dose [30 mg/day] based on body surface area) administered during organogenesis and pregnant rabbits at oral lansoprazole doses up to 30 mg/kg/day (16 times the recommended human dose based on body surface area) administered during organogenesis. A pre- and postnatal developmental toxicity study in rats with additional endpoints to evaluate bone development was performed with lansoprazole at oral doses of 10 to 100 mg/kg/day (0.7 to 6.4 times the maximum recommended human lansoprazole dose of 30 mg based on AUC [area under the plasma concentration-time curve]) administered during organogenesis through lactation. Maternal effects observed at 100 mg/kg/day (6.4 times the maximum recommended human lansoprazole dose of 30 mg based on AUC) included increased gestation period, decreased body weight gain during gestation, and decreased food consumption. The number of stillbirths was increased at this dose, which may have been secondary to maternal toxicity. Body weight of pups was reduced at 100 mg/kg/day starting on postnatal Day 11. Femur weight, femur length, and crown-rump length were reduced at 100 mg/kg/day on postnatal Day 21. Femur weight was still decreased in the 100 mg/kg/day group at age 17 to 18 weeks. Growth plate thickness was decreased in the 100 mg/kg/day males on postnatal Day 21, and was increased in the 30 and 100 mg/kg/day males at age 17 to 18 weeks. The effects on bone parameters were associated with reduction in body weight gain.

8 USE IN SPECIFIC POPULATIONS Pregnancy : Based on animal data, may cause adverse effects on fetal bone growth and development. (8.1) Pediatrics: Use is not recommended for the treatment of symptomatic GERD in patients 1 month to less than 1 year of age; efficacy was not demonstrated and nonclinical studies have demonstrated adverse effects in juvenile rats. ( 5.13 , 8.4 ) 8.1 Pregnancy Risk Summary Available data from published observational studies overall do not indicate an association of adverse pregnancy outcomes with lansoprazole treatment ( see Data ). In animal reproduction studies, oral administration of lansoprazole to rats during organogenesis through lactation at 6.4 times the maximum recommended human dose produced reductions in the offspring in femur weight, femur length, crown-rump length and growth plate thickness (males only) on postnatal Day 21 (see Data). These effects were associated with reduction in body weight gain. Advise pregnant women of the potential risk to the fetus. The estimated background risk of major birth defects and miscarriage for the indicated populations are unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. If lansoprazole delayed-release orally disintegrating tablets are administered with clarithromycin, the pregnancy information for clarithromycin also applies to the combination regimen. Refer to the prescribing information for clarithromycin for more information on use in pregnancy. Data Human Data Available data from published observational studies failed to demonstrate an association of adverse pregnancy-related outcomes and lansoprazole use. Methodological limitations of these observational studies cannot definitely establish or exclude any drug-associated risk during pregnancy. In a prospective study by the European Network of Teratology Information Services, outcomes from a group of 62 pregnant women administered median daily doses of 30 mg of lansoprazole were compared to a control group of 868 pregnant women who did not take any PPIs. There was no difference in the rate of major malformations between women exposed to PPIs and the control group, corresponding to a Relative Risk (RR) =1.04, [95% Confidence Interval (CI) 0.25 to 4.21]. In a population-based retrospective cohort study covering all live births in Denmark from 1996 to 2008, there was no significant increase in major birth defects during analysis of first trimester exposure to lansoprazole in 794 live births. A meta-analysis that compared 1,530 pregnant women exposed to PPIs in at least the first trimester with 133,410 unexposed pregnant women showed no significant increases in risk for congenital malformations or spontaneous abortion with exposure to PPIs (for major malformations Odds Ratio (OR)=1.12, [95% CI 0.86 to 1.45] and for spontaneous abortions OR=1.29, [95% CI 0.84 to 1.97]). Animal Data No adverse effects on embryo-fetal development occurred in studies performed in pregnant rats at oral lansoprazole doses up to 150 mg/kg/day (40 times the recommended human dose [30 mg/day] based on body surface area) administered during organogenesis and pregnant rabbits at oral lansoprazole doses up to 30 mg/kg/day (16 times the recommended human dose based on body surface area) administered during organogenesis. A pre- and postnatal developmental toxicity study in rats with additional endpoints to evaluate bone development was performed with lansoprazole at oral doses of 10 to 100 mg/kg/day (0.7 to 6.4 times the maximum recommended human lansoprazole dose of 30 mg based on AUC [area under the plasma concentration-time curve]) administered during organogenesis through lactation. Maternal effects observed at 100 mg/kg/day (6.4 times the maximum recommended human lansoprazole dose of 30 mg based on AUC) included increased gestation period, decreased body weight gain during gestation, and decreased food consumption. The number of stillbirths was increased at this dose, which may have been secondary to maternal toxicity. Body weight of pups was reduced at 100 mg/kg/day starting on postnatal Day 11. Femur weight, femur length, and crown-rump length were reduced at 100 mg/kg/day on postnatal Day 21. Femur weight was still decreased in the 100 mg/kg/day group at age 17 to 18 weeks. Growth plate thickness was decreased in the 100 mg/kg/day males on postnatal Day 21, and was increased in the 30 and 100 mg/kg/day males at age 17 to 18 weeks. The effects on bone parameters were associated with reduction in body weight gain. 8.2 Lactation Risk Summary There is no information regarding the presence of lansoprazole in human milk, the effects on the breastfed infant, or the effects on milk production. However, lansoprazole and its metabolites are present in rat milk. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for lansoprazole delayed-release orally disintegrating tablets and any potential adverse effects on the breastfed child from lansoprazole delayed-release orally disintegrating tablets or from the underlying maternal condition. 8.4 Pediatric Use The safety and effectiveness of lansoprazole delayed-release orally disintegrating tablets have been established in pediatric patients one year to 17 years of age for short-term treatment of symptomatic GERD and erosive esophagitis. In clinical studies of symptomatic GERD and erosive esophagitis, lansoprazole was not administered beyond 12 weeks in patients one year to 11 years of age. It is not known if lansoprazole delayed-release orally disintegrating tablets are safe and effective if used longer than the recommended duration. Do not exceed the recommended dose and duration of use in pediatric patients (see Juvenile Animal Toxicity Data). Lansoprazole was not effective in pediatric patients with symptomatic GERD one month to less than one year of age in a multicenter, double-blind, placebo-controlled study. Therefore, safety and effectiveness have not been established in patients less than one year of age. Nonclinical studies in juvenile rats have demonstrated an adverse effect of heart valve thickening and bone changes at lansoprazole doses higher than the maximum recommended equivalent human dose. Neonate to less than one year of age The pharmacokinetics of lansoprazole were studied in pediatric patients with GERD aged less than 28 days and one to 11 months. Compared to healthy adults receiving 30 mg, neonates had higher exposure (mean weight-based normalized AUC values 2.04 and 1.88 fold higher at doses of 0.5 and 1 mg/kg/day, respectively). Infants aged ≤10 weeks had clearance and exposure values that were similar to neonates. Infants aged greater than 10 weeks who received 1 mg/kg/day had mean AUC values that were similar to adults who received a 30 mg dose. Lansoprazole was not found to be effective in a U.S. and Polish four week multicenter, double-blind, placebo-controlled, parallel-group study of 162 patients between one month and less than 12 months of age with symptomatic GERD based on a medical history of crying/fussing/irritability associated with feedings who had not responded to conservative GERD management (i.e., nonpharmacologic intervention) for seven to 14 days. Patients received lansoprazole as a suspension daily (0.2 to 0.3 mg/kg/day in infants ≤10 weeks of age or 1 to 1.5 mg/kg/day in infants greater than 10 weeks or placebo) for up to four weeks of double-blind treatment. The primary efficacy endpoint was assessed by greater than 50% reduction from baseline in either the percent of feedings with a crying/fussing/irritability episode or the duration (minutes) of a crying/fussing/irritability episode within one hour after feeding. There was no difference in the percentage of responders between the lansoprazole pediatric suspension group and placebo group (54% in both groups). There were no adverse events reported in pediatric clinical studies (one month to less than 12 months of age) that were not previously observed in adults. Based on the results of the Phase 3 efficacy study, lansoprazole was not shown to be effective. Therefore, these results do not support the use of lansoprazole in treating symptomatic GERD in infants. One year to 11 years of age In an uncontrolled, open-label, U.S. multi-center study, 66 pediatric patients (one year to 11 years of age) with GERD were assigned, based on body weight, to receive an initial dose of either lansoprazole 15 mg daily if <30 kg or lansoprazole 30 mg daily if greater than 30 kg administered for eight to 12 weeks. The lansoprazole dose was increased (up to 30 mg twice daily) in 24 of 66 pediatric patients after two or more weeks of treatment if they remained symptomatic. At baseline, 85% of patients had mild to moderate overall GERD symptoms (assessed by investigator interview), 58% had non-erosive GERD and 42% had erosive esophagitis (assessed by endoscopy). After eight to 12 weeks of lansoprazole treatment, the intent-to-treat analysis demonstrated an approximate 50% reduction in frequency and severity of GERD symptoms. Twenty one of 27 erosive esophagitis patients were healed at eight weeks and 100% of patients were healed at 12 weeks by endoscopy (Table 4). Table 4: GERD Symptom Improvement and Erosive Esophagitis Healing Rates in Pediatric Patients Age 1 Year to 11 Years of Age GERD Final Visit * % (n/N) Symptomatic GERD Improvement in Overall GERD Symptoms † 76% (47/62 ‡ ) Erosive Esophagitis Improvement in Overall GERD Symptoms † Healing Rate 81% (22/27) 100% (27/27) * At Week 8 or Week 12 † Symptoms assessed by patients diary kept by caregiver. ‡ No data were available for four pediatric patients. In a study of 66 pediatric patients in the age group one year to 11 years old after treatment with lansoprazole given orally in doses of 15 mg daily to 30 mg twice daily, increases in serum gastrin levels were similar to those observed in adult studies. Median fasting serum gastrin levels increased 89% from 51 pg/mL at baseline to 97 pg/mL [interquartile range (25 th to 75 th percentile) of 71 to 130 pg/mL] at the final visit. The pediatric safety of lansoprazole capsules has been assessed in 66 pediatric patients aged oneto 11 years of age. Of the 66 patients with GERD, 85% (56/66) took lansoprazole for eight weeksand 15% (10/66) took it for 12 weeks. The most frequently reported (two or more patients) treatment-related adverse reactions in patients one to 11 years of age (N=66) were constipation (5%) and headache (3%). Twelve years to 17 years of age In an uncontrolled, open-label, U.S. multicenter study, 87 adolescent patients (12 years to 17 years of age) with symptomatic GERD were treated with lansoprazole for eight to 12 weeks. Baseline upper endoscopies classified these patients into two groups: 64 (74%) non-erosive GERD and 23 (26%) erosive esophagitis (EE). The non-erosive GERD patients received lansoprazole 15 mg daily for eight weeks and the EE patients received lansoprazole 30 mg daily for eight to 12 weeks. At baseline, 89% of these patients had mild to moderate overall GERD symptoms (assessed by investigator interviews). During eight weeks of lansoprazole treatment, adolescent patients experienced a 63% reduction in frequency and a 69% reduction in severity of GERD symptoms based on diary results. Twenty-one of 22 (95.5%) adolescent erosive esophagitis patients were healed after eight weeks of lansoprazole treatment. One patient remained unhealed after 12 weeks of treatment (Table 5). Table 5: GERD Symptom Improvement and Erosive Esophagitis Healing Rates in Pediatric Patients Age 12 to Years to 17 Years of Age GERD Final Visit % (n/N) Symptomatic GERD (All Patients) Improvement in Overall GERD Symptoms* 73.2% (60/82) † Non-erosive GERD Improvement in Overall GERD Symptoms* 71.2% (42/59) † Erosive Esophagitis Improvement in Overall GERD Symptoms* Healing Rate ‡ 78.3% (18/23) 95.5% (21/22) ‡ *Symptoms assessed by patient diary (parents/caregivers as necessary). † No data available for five patients. ‡ Data from one healed patient was excluded from this analysis due to timing of final endoscopy. In these 87 adolescent patients, increases in serum gastrin levels were similar to those observed in adult studies, median fasting serum gastrin levels increased 42% from 45 pg/mL at baseline to 64 pg/mL [interquartile range (25 th to 75 th percentile) of 44 to 88 pg/mL] at the final visit. (Normal serum gastrin levels are 25 to 111 pg/mL). The safety of lansoprazole delayed-release capsules has been assessed in these 87 adolescent patients. Of the 87 adolescent patients with GERD, 6% (5/87) took lansoprazole for less than six weeks, 93% (81/87) for six to 10 weeks, and 1% (1/87) for greater than 10 weeks. The most frequently reported (at least 3%) treatment-related adverse reactions in these patients were headache (7%), abdominal pain (5%), nausea (3%) and dizziness (3%). Treatment-related dizziness, reported in this prescribing information as occurring in less than 1% of adult patients, was reported in this study by three adolescent patients with non-erosive GERD, who had dizziness concurrently with other reactions (such as migraine, dyspnea, and vomiting). Juvenile Animal Toxicity Data Heart Valve Thickening In two oral toxicity studies, thickening of the mitral heart valve occurred in juvenile rats treated with lansoprazole. Heart valve thickening was observed primarily with oral dosing initiated on postnatal Day 7 (age equivalent to neonatal humans) and postnatal Day 14 (human age equivalent of approximately one year) at doses of 250 mg/kg/day and higher (at postnatal Day 7 and postnatal Day 14, respectively 6.2 times and 4.2 times the daily pediatric dose of 15 mg in pediatric patients age one to 11 years weighing 30 kg or less, based on AUC). The treatment durations associated with heart valve thickening ranged from 5 days to 8 weeks. The findings reversed or trended towards reversibility after a 4-week drug-free recovery period. The incidence of heart valve thickening after initiation of dosing on postnatal Day 21 (human age equivalent of approximately two years) was limited to a single rat (1/24) in groups given 500 mg/kg/day for 4 or 8 weeks (approximately 5.2 times the daily pediatric dose of 15 mg in pediatric patients age one to 11 years weighing 30 kg or less, based on AUC). Based on exposure margins, the risk of heart valve injury does not appear to be relevant to patients one year of age and older. Bone Changes In an eight-week oral toxicity study in juvenile rats with dosing initiated on postnatal Day 7, doses equal to or greater than 100 mg/kg/day (2.5 times the daily pediatric dose of 15 mg in children age one to 11 years weighing 30 kg or less, based on AUC) produced delayed growth, with impairment of weight gain observed as early as postnatal Day 10 (age equivalent to neonatal humans). At the end of treatment, the signs of impaired growth at 100 mg/kg/day and higher included reductions in body weight (14 to 44% compared to controls), absolute weight of multiple organs, femur weight, femur length, and crown-rump length. Femoral growth plate thickness was reduced only in males and only at the 500 mg/kg/day dose. The effects related to delayed growth persisted through the end of the four-week recovery period. Longer term data were not collected. 8.5 Geriatric Use Of the total number of patients (n=21,486) in clinical studies of lansoprazole, 16% of patients were aged 65 years and over, while 4% were 75 years and over. No overall differences in safety or effectiveness were observed between these patients and younger patients and other reported clinical experience has not identified significant differences in responses between geriatric and younger patients, but greater sensitivity of some older individuals cannot be ruled out [see Clinical Pharmacology ( 12.3 ) ]. 8.6 Hepatic Impairment In patients with various degrees of chronic hepatic impairment the exposure to lansoprazole was increased compared to healthy subjects with normal hepatic function [ see Clinical Pharmacology ( 12.3 )] . No dosage adjustment for lansoprazole delayed-release orally disintegrating tablets is necessary for patients with mild (Child-Pugh Class A) or moderate (Child-Pugh Class B) hepatic impairment. The recommended dosage is 15 mg orally daily in patients with severe hepatic impairment (Child-Pugh Class C) [see Dosage and Administration (2.3) ] .

16 HOW SUPPLIED/STORAGE AND HANDLING Lansoprazole delayed-release orally disintegrating tablets, 15 mg are white to off white, round, flat faced beveled edge, uncoated tablets with orange to dark brown colored speckles, debossed with ' ' on one side and ‘15’ on the other side. The 30 mg are white to off white, round, flat faced beveled edge, uncoated tablets with orange to dark brown colored speckles, debossed with ' ' on one side and ‘30’ on the other side. The tablets are available as follows: 15 mg tablets: Unit dose packages of 100 (10 x 10) NDC 43598-560-78 30 mg tablets: Unit dose packages of 100 (10 x 10) NDC 43598-561-78 Store at 20° to 25° C (68° to 77° F); [see USP Controlled Room Temperature].