Antibiotic (Aminoglycoside)
Last reviewed June 2026
Who is this for?
Gentamicin is a strong antibiotic injection that works by killing bacteria that cause serious infections in the body. It belongs to the aminoglycoside family of antibiotics and is given by injection because it does not work when swallowed.
Binds to bacterial 30S ribosomal subunit, inhibiting protein synthesis and causing bactericidal activity against aerobic gram-negative bacteria and gram-positive cocci. Penetrates bacterial cell membrane in an oxygen-dependent process, making it particularly effective against rapidly dividing organisms.
Prescription Required
You need a doctor's prescription to buy this drug.
Explore this drug
This drug is given as an injection (into the muscle or through a drip) by a nurse or doctor — it is NOT taken by mouth. The usual adult dose is 3-5 mg per kg of body weight per day, usually divided into 2-3 doses. Your doctor will determine the exact dose and how long you need it based on your infection.
Since this drug is given by a nurse or doctor, make sure you keep all your injection appointments. If you miss a scheduled dose, go for your injection as soon as possible and let your healthcare provider know so they can adjust your schedule.
Important for antibiotics
Always complete the full course even if you feel better. Stopping early can cause the infection to return and become drug-resistant.
Always receive this injection at a hospital or clinic — never buy it from roadside sellers or try to inject yourself at home. Complete the full course of treatment even if you feel better, as stopping early can make the infection come back stronger. Make sure your doctor checks your kidney function and hearing if you are on this drug for more than a few days.
Avoid using with other drugs that can damage the kidneys such as ibuprofen (e.g. Ibuprofen, Nurofen) or diclofenac (Voltaren/Cataflam) unless your doctor says so. Using gentamicin with furosemide (Lasix) or other water tablets increases the risk of hearing damage. Do not combine with other aminoglycoside antibiotics like streptomycin or kanamycin.
Check your specific combination
Is it safe to take Gentamycin with your other drugs?
Gentamicin is NOT safe during pregnancy as it can harm the unborn baby's ears and kidneys; breastfeeding mothers should also consult their doctor before using it.
Store below 30°C in a cool, dry place away from direct sunlight and heat — this is important in Nigerian weather. Do not freeze the injection. Keep out of reach of children. Do not use if the liquid looks cloudy, discoloured, or has particles floating in it.
For information only — not medical advice. Always talk to a doctor or pharmacist before changing your medication.
Names this drug is sold under — especially in Nigerian and West African pharmacies
Tap a brand for packaging, NAFDAC details and authenticity check
Counterfeit Drug Warning
Fake drugs are a serious problem in Nigeria. Always buy from a registered pharmacy. If the packaging looks different from what is described above, do not use it.