GENTAMICIN SULFATE

ADVERSE REACTIONS Bacterial and fungal corneal ulcers have developed during treatment with gentamicin ophthalmic preparations. The most frequently reported adverse reactions are ocular burning and irritation upon drug instillation, non-specific conjunctivitis, conjunctival epithelial defects and conjunctival hyperemia. Other adverse reactions which have occurred rarely are allergic reactions, thrombocytopenic purpura and hallucinations.

CONTRAINDICATIONS Gentamicin sulfate ophthalmic solution, USP is contraindicated in patients with known hypersensitivity to any of its components.

DESCRIPTION Gentamicin sulfate ophthalmic solution, USP is a sterile, topical anti-infective agent for ophthalmic use. Gentamicin is obtained from cultures of Micromonospora purpurea . It is a mixture of the sulfate salts of gentamicin C 1 , C 2 , and C 1A . All three components appear to have similar antimicrobial activity. Gentamicin sulfate occurs as a white to buff powder and is soluble in water and insoluble in alcohol. The structural formula is as follows: Each mL contains: Active: gentamicin sulfate equivalent to 3 mg (0.3%) gentamicin base. Preservative: benzalkonium chloride. Inactives: edetate disodium; polyvinyl alcohol 1.4%; purified water; sodium chloride; sodium phosphate, dibasic; and hydrochloric acid and/or sodium hydroxide may be added to adjust pH. The solution is an aqueous, buffered solution with a shelf life pH range of 6.5 to 7.5. The structural formula for Gentamicin is obtained from cultures of Micromonospora purpurea. It is a mixture of the sulfate salts of gentamicin C1, C2, and C1A. All three components appear to have similar antimicrobial activity. Gentamicin sulfate occurs as a white to buff powder and is soluble in water and insoluble in alcohol.

DOSAGE AND ADMINISTRATION Instill one or two drops into the affected eye(s) every four hours. In severe infections, dosage may be increased to as much as two drops every hour.

INDICATIONS AND USAGE Gentamicin sulfate ophthalmic solution, USP is indicated in the topical treatment of ocular bacterial infections including conjunctivitis, keratitis, keratoconjunctivitis, corneal ulcers, blepharitis, blepharoconjunctivitis, acute meibomianitis, and dacryocystitis, caused by susceptible strains of the following microorganisms: Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus pyogenes, Streptococcus pneumoniae, Enterobacter aerogenes, Escherichia coli, Haemophilus influenzae, Klebsiella pneumoniae, Neisseria gonorrhoeae, Pseudomonas aeruginosa, and Serratia marcescens .

WARNINGS NOT FOR INJECTION INTO THE EYE. Gentamicin sulfate ophthalmic solution, USP is not for injection. It should never be injected subconjunctivally, nor should it be directly introduced into the anterior chamber of the eye.

CLINICAL PHARMACOLOGY Microbiology Gentamicin sulfate is active in vitro against many strains of the following microorganisms: Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus pyogenes, Streptococcus pneumoniae, Enterobacter aerogenes, Escherichia coli, Haemophilus influenzae, Klebsiella pneumoniae, Neisseria gonorrhoeae, Pseudomonas aeruginosa, and Serratia marcescens .

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GENTAMICIN SULFATE gentamicin sulfate GENTAMICIN SULFATE GENTAMICIN EDETATE DISODIUM POLYVINYL ALCOHOL, UNSPECIFIED WATER SODIUM CHLORIDE SODIUM PHOSPHATE, DIBASIC, UNSPECIFIED FORM BENZALKONIUM CHLORIDE HYDROCHLORIC ACID SODIUM HYDROXIDE

Carcinogenesis, Mutagenesis, Impairment of Fertility There are no published carcinogenicity or impairment of fertility studies on gentamicin. Aminoglycoside antibiotics have been found to be non-mutagenic.

ANDA062452

GENTAMICIN SULFATE

gentamicin sulfate

50090-2333

HUMAN PRESCRIPTION DRUG

OPHTHALMIC

gentamicin sulfate Label Image

Information for Patients To avoid contamination, do not touch tip of container to the eye, eyelid or any surface.

Pediatric Use Safety and effectiveness in neonates have not been established.

Pregnancy Gentamicin has been shown to depress body weights, kidney weights and median glomerular counts in newborn rats when administered systemically to pregnant rats in daily doses approximately 500 times the maximum recommended ophthalmic human dose. There are no adequate and well-controlled studies in pregnant women. Gentamicin should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

HOW SUPPLIED Product: 50090-2333 NDC: 50090-2333-0 5 mL in a BOTTLE, DROPPER / 1 in a CARTON

General Prolonged use of topical antibiotics may give rise to overgrowth of nonsusceptible microorganisms, including fungi. Bacterial resistance to gentamicin may also develop. If purulent discharge, inflammation or pain becomes aggravated, the patient should discontinue use of the medication and consult a physician. If irritation or hypersensitivity to any component of the drug develops, the patient should discontinue use of this preparation and appropriate therapy should be instituted.

PRECAUTIONS General Prolonged use of topical antibiotics may give rise to overgrowth of nonsusceptible microorganisms, including fungi. Bacterial resistance to gentamicin may also develop. If purulent discharge, inflammation or pain becomes aggravated, the patient should discontinue use of the medication and consult a physician. If irritation or hypersensitivity to any component of the drug develops, the patient should discontinue use of this preparation and appropriate therapy should be instituted. Information for Patients To avoid contamination, do not touch tip of container to the eye, eyelid or any surface. Carcinogenesis, Mutagenesis, Impairment of Fertility There are no published carcinogenicity or impairment of fertility studies on gentamicin. Aminoglycoside antibiotics have been found to be non-mutagenic. Pregnancy Gentamicin has been shown to depress body weights, kidney weights and median glomerular counts in newborn rats when administered systemically to pregnant rats in daily doses approximately 500 times the maximum recommended ophthalmic human dose. There are no adequate and well-controlled studies in pregnant women. Gentamicin should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Pediatric Use Safety and effectiveness in neonates have not been established.