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Gentamicin (IP/USP)
Gentamicin is a powerful, broad-spectrum aminoglycoside antibiotic used to treat serious bacterial infections, especially those caused by Gram-negative organisms like Pseudomonas and Proteus. It works by binding to the 30S ribosomal subunit, thereby inhibiting protein synthesis and leading to bacterial death.
It is available in multiple forms including topical creams/ointments, eye/ear drops, and injectable formulations for systemic infections.
Medicinal uses
Skin Infections: Effective in impetigo, folliculitis, and infected dermatitis
Ophthalmic Care: Used for conjunctivitis, keratitis, and eyelid infections
Otic Treatment: Treats otitis externa caused by susceptible bacteria
Systemic Infections: Injectable form used for sepsis, UTIs, and osteomyelitis
General information
Bactericidal Effect: Kills bacteria rather than just inhibiting growth
Rapid Absorption: Quick action at the site of application
Targeted Therapy: Minimal systemic absorption in topical forms
Usage Instructions
For Skin: Clean area and apply a thin layer 3–4 times daily
For Eyes/Ears: Instill drops carefully without touching the dropper tip
Course Completion: Always complete the full prescribed course
Warnings and Precautions
Nephrotoxicity & Ototoxicity: Monitor kidney function and hearing during systemic use
Allergy Alert: Avoid if allergic to aminoglycosides like neomycin or tobramycin
Long-Term Use: Avoid prolonged use to prevent fungal overgrowth
Pregnancy & Lactation: Use only under medical supervision
Frequently Asked Questions (FAQs)
Q: Can Gentamicin treat viral infections like cold or flu?
No, it is effective only against bacterial infections
Q: Is itching normal after application?
Mild irritation may occur, but severe reactions need medical attention
Q: Can I wear contact lenses while using eye drops?
Avoid use and consult an ophthalmologist if irritation persists
Q: What should I do if I miss a dose?
Use as soon as remembered; do not double dose
Q: Why is blood monitoring needed with injections?
To maintain effective drug levels while preventing toxicity
