Phenylephrine Hydrochloride

6 ADVERSE REACTIONS The following serious adverse reactions are described below and elsewhere in the labeling: Cardiovascular Effects [See Warnings and Precautions (5.2) ] Elevation in Blood Pressure [See Warnings and Precautions (5.3) ] The following adverse reactions have been identified following use of phenylephrine hydrochloride ophthalmic solution. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Ocular adverse reactions include eye pain and stinging on instillation, temporary blurred vision, and photophobia ( 6.1 ) Cardiovascular adverse reactions include increase in blood pressure, syncope, myocardial infarction, tachycardia, arrhythmia and subarachnoid hemorrhage ( 6.2 ) To report SUSPECTED ADVERSE REACTIONS, contact Lifestar Pharma LLC at 1-888-995-4337 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Ocular Adverse Reactions Eye pain and stinging on instillation, temporary blurred vision and photophobia, and conjunctival sensitization may occur. 6.2 Systemic Adverse Reactions A marked increase in blood pressure has been reported particularly, but not limited to low weight premature neonates, infants and hypertensive patients. Cardiovascular effects which have been seen primarily in hypertensive patients following topical ocular use of phenylephrine hydrochloride ophthalmic solution 10% include marked increase in blood pressure, syncope, myocardial infarction, tachycardia, arrhythmia and subarachnoid hemorrhage [ See Warnings and Precautions ( 5.2 and 5.3 )].

4 CONTRAINDICATIONS The 10% strength is contraindicated in: Patients with hypertension, or thyrotoxicosis ( 4.1 ) Pediatric patients less than 1 year of age due to increased risk of systemic toxicity ( 4.2 ) 4.1 Cardiac and Endocrine Disease Phenylephrine hydrochloride ophthalmic solution 10% is contraindicated in patients with hypertension or thyrotoxicosis. Phenylephrine hydrochloride ophthalmic solution 2.5% should be used in these patients. 4.2 Pediatric Patients Less Than 1 Year of Age Phenylephrine hydrochloride ophthalmic solution 10% is contraindicated in pediatric patients less than 1 year of age due to the increased risk of systemic toxicity. Phenylephrine hydrochloride ophthalmic solution 2.5% should be used in these patients [See Dosage and Administration (2.2) ].

11 DESCRIPTION Phenylephrine Hydrochloride Ophthalmic Solution, USP is a sterile, clear, colorless to yellow color solution, topical α -adrenergic agonist for ophthalmic use. The active ingredient is represented by the chemical structure Chemical Name: (R)-3-hydroxy-α[(methylamino)methyl]benzenemethanol hydrochloride. Molecular Formula: C 9 H 13 NO 2 .HCl Molecular Weight: 203.67 g/mol Each mL of Phenylephrine Hydrochloride Ophthalmic Solution, USP 10% contains: ACTIVE: Phenylephrine Hydrochloride 100 mg (10%); INACTIVES: Sodium Phosphate Monobasic, Sodium Phosphate Dibasic, Water for Injection. Phosphoric Acid and/or Sodium Hydroxide may be added to adjust pH (4.0 to 7.5). The solution has a tonicity of 985 mOsm/kg; PRESERVATIVE: Benzalkonium Chloride 0.1 mg (0.01%). Chemical Structure

2 DOSAGE AND ADMINISTRATION For patients 1 year of age and older : ( 2.1 ) Apply one drop of Phenylephrine Hydrochloride Ophthalmic Solution (10% strength) to conjunctival fornix at 3 to 5 minute intervals up to a maximum of 3 drops per eye. To obtain a greater degree of mydriasis, use 10% strength For pediatric patients less than 1 year of age : ( 2.2 ) Instill one drop of 2.5% strength to conjunctival fornix at 3 to 5 minute intervals up to a maximum of 3 drops per eye. 2.1 General Dosing Recommendations In patients 1 year of age or greater, apply one drop of either phenylephrine hydrochloride ophthalmic solution 2.5% or 10% every 3 to 5 minutes to the conjunctival fornix as required up to a maximum of 3 drops per eye per day In order to obtain a greater degree of mydriasis, phenylephrine hydrochloride ophthalmic solution 10% may be needed 2.2 Dosing in Pediatric Patients Less Than 1 Year of Age In pediatric patients less than 1 year of age, one drop of phenylephrine hydrochloride ophthalmic solution 2.5% should be instilled at 3 to 5 minute intervals up to a maximum of 3 drops per eye.

1 INDICATIONS AND USAGE Phenylephrine Hydrochloride Ophthalmic Solution, USP 10%, is indicated to dilate the pupil. Phenylephrine Hydrochloride Ophthalmic Solution is an alpha-1 adrenergic receptor agonist indicated to dilate the pupil ( 1 )

10 OVERDOSAGE Overdosage of phenylephrine may cause a rapid rise in blood pressure. It may also cause headache, anxiety, nausea, and vomiting, and ventricular arrhythmias. Prompt injection of a rapidly acting alpha-adrenergic blocking agent such as phentolamine has been recommended.

7 DRUG INTERACTIONS Atropine-like drugs: May exaggerate the adrenergic pressor response ( 7.1 ) Potent inhalation anesthetic agents: May potentiate cardiovascular depressant effects ( 7.1 ) 7.1 Agents That May Exaggerate Pressor Responses Concomitant use of phenylephrine and atropine may enhance the pressor effects and induce tachycardia in some patients. Phenylephrine may potentiate the cardiovascular depressant effects of some inhalation anesthetic agents.

12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Phenylephrine hydrochloride is an α-1 adrenergic agonist drug that is used in ophthalmology mainly for its mydriatic effect. After topical application to the conjunctiva, phenylephrine acts directly on α-adrenergic receptors in the eye, producing contraction of the dilator muscle of the pupil and constriction of the arterioles in the conjunctiva. 12.2 Pharmacodynamics Maximal mydriasis occurs in 20 to 90 minutes with recovery after 3 to 8 hours. Systemic absorption of sufficient quantities of phenylephrine may lead to systemic α-adrenergic effects, such as rise in blood pressure which may be accompanied by a reflex atropine-sensitive bradycardia. 12.3 Pharmacokinetics The systemic exposure following topical administration of phenylephrine hydrochloride ophthalmic solution has not been studied. A higher systemic absorption is expected for the 10% solution than the 2.5% solution and when the corneal barrier function is compromised.

12.1 Mechanism of Action Phenylephrine hydrochloride is an α-1 adrenergic agonist drug that is used in ophthalmology mainly for its mydriatic effect. After topical application to the conjunctiva, phenylephrine acts directly on α-adrenergic receptors in the eye, producing contraction of the dilator muscle of the pupil and constriction of the arterioles in the conjunctiva.

12.2 Pharmacodynamics Maximal mydriasis occurs in 20 to 90 minutes with recovery after 3 to 8 hours. Systemic absorption of sufficient quantities of phenylephrine may lead to systemic α-adrenergic effects, such as rise in blood pressure which may be accompanied by a reflex atropine-sensitive bradycardia.

12.3 Pharmacokinetics The systemic exposure following topical administration of phenylephrine hydrochloride ophthalmic solution has not been studied. A higher systemic absorption is expected for the 10% solution than the 2.5% solution and when the corneal barrier function is compromised.

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3 DOSAGE FORMS AND STRENGTHS Phenylephrine hydrochloride ophthalmic solution, USP 10% is a clear, colorless, to yellow colored sterile topical ophthalmic solution containing phenylephrine hydrochloride 10%.: each mL contains 100 mg of phenylephrine hydrochloride. Ophthalmic solution (sterile): ( 3 ) 100 mg of phenylephrine hydrochloride in one mL of solution (10%)

Phenylephrine Hydrochloride Phenylephrine Hydrochloride PHENYLEPHRINE HYDROCHLORIDE PHENYLEPHRINE BENZALKONIUM CHLORIDE PHOSPHORIC ACID SODIUM HYDROXIDE SODIUM PHOSPHATE, DIBASIC, ANHYDROUS SODIUM PHOSPHATE, MONOBASIC, ANHYDROUS WATER

ANDA216496

Phenylephrine Hydrochloride

Phenylephrine Hydrochloride

70756-614

HUMAN PRESCRIPTION DRUG

OPHTHALMIC

NDC 70756-614-30 Phenylephrine Hydrochloride Ophthalmic Solution, USP 10% For Topical Application in the Eye. Not for Injection Rx only 5 mL bottlelabel

17 PATIENT COUNSELING INFORMATION Advise patients not to touch the dropper tip to any surface as this may contaminate the solution. Inform patients that they may experience sensitivity to light and should protect their eyes in bright illumination while their pupils are dilated. Manufactured for: Lifestar Pharma LLC 1200 MacArthur Blvd. Mahwah, NJ 07430 USA Made in India Revised: March 2023, V-04

14 CLINICAL STUDIES Pupillary dilation following topical administration of phenylephrine hydrochloride ophthalmic solution has been demonstrated in controlled clinical studies in adults and pediatric patients with different levels of iris pigmentation. Pupil movement is generally seen within 15 minutes, maximal mydriasis between 20 to 90 minutes and recovery after 3 to 8 hours. Darker irides tend to dilate slower than lighter irides.

8.5 Geriatric Use No overall differences in safety and effectiveness have been observed between elderly and younger adult patients.

8.3 Nursing Mothers It is not known whether this drug is excreted in human breast milk. Because many drugs are excreted in human milk, caution should be exercised when phenylephrine hydrochloride ophthalmic solution 2.5% and 10% is administered to a nursing woman.

8.4 Pediatric Use Phenylephrine hydrochloride ophthalmic solution 10% is contraindicated in pediatric patients less than 1 year of age [ See Contraindications (4.2) ].

8.1 Pregnancy Animal reproduction studies have not been conducted with topical phenylephrine. It is also not known whether phenylephrine can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Phenylephrine hydrochloride should be given to a pregnant woman only if clearly needed.

8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy Animal reproduction studies have not been conducted with topical phenylephrine. It is also not known whether phenylephrine can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Phenylephrine hydrochloride should be given to a pregnant woman only if clearly needed. 8.3 Nursing Mothers It is not known whether this drug is excreted in human breast milk. Because many drugs are excreted in human milk, caution should be exercised when phenylephrine hydrochloride ophthalmic solution 2.5% and 10% is administered to a nursing woman. 8.4 Pediatric Use Phenylephrine hydrochloride ophthalmic solution 10% is contraindicated in pediatric patients less than 1 year of age [ See Contraindications (4.2) ]. 8.5 Geriatric Use No overall differences in safety and effectiveness have been observed between elderly and younger adult patients.

16 HOW SUPPLIED/STORAGE AND HANDLING Phenylephrine Hydrochloride Ophthalmic Solution, USP 10% is supplied as a sterile, clear, colorless to yellow color, aqueous, topical ophthalmic solution in an opaque, white low density polyethylene (LDPE) bottle with a natural LDPE dropper tip and red cap in the following sizes: NDC 70756-614-30 5 mL in 10 mL bottle After opening, Phenylephrine Hydrochloride Ophthalmic Solution, USP can be used until the expiration date on the bottle. Storage: Store at 20° to 25°C (68° to 77°F). See USP Controlled room temperature. Keep container tightly closed. Protect from light and excessive heat. Do not use if solution is brown or contains precipitate.

Storage: Store at 20° to 25°C (68° to 77°F). See USP Controlled room temperature. Keep container tightly closed. Protect from light and excessive heat. Do not use if solution is brown or contains precipitate.