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General Information
What should I know before taking this drug
Dosage information
Adverse reactions
Additional information if any

Gentaril (Alkem)
Tamiacin (Sun)

Gentamicin is a prescription drug available from your pharmacy store only with the prescription of a qualified medical practitioner.

Gentamicin is pronounced as: gen tah MY sin

Gentamicin is an anti infective / antibacterial drug belonging to amino glycoside group of antibiotics.

Gentamicin is used in the treatment of serious and severe bacterial infections, for prevention of bacterial endocarditis in susceptible individuals, eye infections etc

  • Gentamicin is available as injection, eye drops and creams. Your doctor will prescribe them depending on the severity of the disease.
  • Gentamicin injection can be administered intramuscularly or intravenously under strict aseptic condition exactly as directed by your doctor. 
  • Gentamicin should be taken regularly as prescribed by your doctor to attain maximum benefit. 
  • Do not skip any doses. Continue to take it even when you feel better. You must complete the entire course of medication to get maximum benefit; else the infection will not clear completely and in due course result in development of resistance. 
  • Always remember to inform your health expert if you are currently taking any prescription like Amphotercin B( antifungal) other nephrotoxic drugs(cisplatin) ,NSAIDS( Ibuprofen), diuretics( lasix, ethacrynic acid), cephalosporin’s(cephaloridin)or OTC
  • Inform your doctor if you have following medical conditions as Gentamicin should be used cautiously in the below mentioned conditions
    1. Kidney disease
    2. Hearing impairment
    3. Parkinson disease
    4. Myasthenia gravis
  • Inform your surgeon or dentist if your undergoing any planned procedure when on Gentamicin medication as it increases the side effects of the anaesthetic drugs.

Do not use gentamicin if you are hypersensitive to it.

Old people: Gentamicin medication should be used cautiously in elderly individual as their renal function decreases with advancing age. 

Pregnant woman: Gentamicin belongs to FDA pregnancy category C. This means that gentamicin may harm an unborn baby if used during pregnancy but potential benefit may warrant use of the drug in pregnant woman despite potential risks. Always inform your doctor if you are pregnant or are planning for conception.
Lactating women: It is not known whether gentamicin passes into breast milk or if it could harm the baby. Do not take gentamicin with out first talking to doctor if you are breast feeding a baby.

Gentamicin is available in the form of drops and injection.

Use as directed by your physician, your physician prescribes depending on the severity of disease. Use the complete course of medication as prescribed by your physician even though you feel better after one or two days of usage of medication. 

For detailed dosage information, consult your doctor who will prescribe you depending on the severity of the disease.

If it is almost the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not take two doses at same time to cover up the missed dose.

In case of overdose contact your nearest poison control centre or emergency medical centre for immediate care by physician.

The overdose symptoms of Gentamicin are
  • Tingling and numbness in the extremities
  • Decrease in amount of urine passed 
  • Muscle twitching
  • Convulsions
  • Dizziness

Gentamicin may causes following side effects like

  • Nausea and vomiting
  • Dizziness 
  • Loss of balance
  • Watery diarrhoea
  • Abdominal cramps
  • Loss of appetite

Consult your doctor immediately if notice following symptoms.

  • Allergic reaction like swollen lips, hives, difficulty in breathing,rashesetc
  • Decrease in the amount of urine passed
  • Ringing sensation in the ears(tinnitus)
  • Hearing loss
  • Muscle weakness
  • Convulsions

Store gentamicin at room temp (15 – 30 degrees C). Avoid excessive heat, moisture or direct sunlight, never store in the bathroom.
Keep it out of reach of children. Make sure that any leftover portion is disposed off safely.

  • Your doctor may advise you to undergo hearing and renal function tests before and after starting gentamicin medication to look for possible side effects.
  • Inform your surgeon or dentist if your undergoing any planned procedure when on gentamicin medication as it increases the side effects of the anaesthetic drugs.

It is imp to read manufacturing packaging instruction carefully if available and always do not hesitate to consult pharmacist or physician for any information.

Written by: Healthplus24 team
Date last updated: May 31, 2012