Gentamicin sulfate ophthalmic solution 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 pneu...
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.
Gentamicin Sulfate Ophthalmic Solution, is a sterile, aqueous solution buffered to approximately pH 7.0 and formulated for ophthalmic use.
EACH mL CONTAINS:
ACTIVE: Gentamicin Sulfate (equivalent to 3 mg gentamicin).
INACTIVES: Dibasic Sodium Phosphate, Sodium Chloride, Monobasic Sodium Phosphate, Purified Water. Hydrochloric Acid and/or Sodium Hydroxide may be added to adjust pH (6.5 - 7.5).
PRESERVATIVE ADDED: Benzalkonium Chloride 0.01%.
Gentamicin is an aminoglycoside antibiotic obtained from cultures of
Micromonospora purpurea. It is a mixture of the sulfate salts of Gentamicin C
1, C
2, C
1a and C
2a. 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:
Gentamicin Sulfate (structural formula)
CLINICAL PHARMACOLOGY
CLINICAL PHARMACOLOGY SECTION
Microbiology
Gentamicin sulfate is active
in vitro against many strains of the following microorganisms:
Gentamicin sulfate ophthalmic solution 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:
Gentamicin sulfate ophthalmic solution is contraindicated in patients with known hypersensitivity to any of its components.
WARNINGS
WARNINGS SECTION
NOT FOR INJECTION INTO THE EYE.
Gentamicin sulfate ophthalmic solution is not for injection. It should never be injected subconjunctivally, nor should it be directly introduced into the anterior chamber of the eye.
PRECAUTIONS
PRECAUTIONS SECTION
General
GENERAL PRECAUTIONS SECTION
Prolonged use of topical antibiotics may give rise to overgrowth of nonsusceptible organisms 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:
INFORMATION FOR PATIENTS SECTION
To avoid contamination, do not touch tip of container to the eye, eyelid or any surface.
Carcinogenesis, Mutagenesis, Impairment of Fertility:
CARCINOGENESIS & MUTAGENESIS & IMPAIRMENT OF FERTILITY SECTION
There are no published carcinogenicity or impairment of fertility studies on gentamicin. Aminoglycoside antibiotics have been found to be non-mutagenic.
Pregnancy:
PREGNANCY SECTION
Pregnancy Category C. 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.
ADVERSE REACTIONS
ADVERSE REACTIONS SECTION
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.
DOSAGE AND ADMINISTRATION
DOSAGE & ADMINISTRATION SECTION
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.
HOW SUPPLIED
HOW SUPPLIED SECTION
Gentamicin Sulfate Ophthalmic Solution USP, 0.3% is supplied in a plastic bottle with a controlled drop tip in the following sizes:
5 mL - NDC 24208-580-60
15 mL - NDC 24208-580-64
NOT FOR INJECTION
FOR OPHTHALMIC USE ONLY
DO NOT USE IF IMPRINTED NECKBAND IS NOT INTACT.
STORAGE AND HANDLING SECTION
Storage: Store between 2°- 25°C (36°- 77°F). Avoid exposure to excessive heat.
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