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Gentamicin is classified as an aminoglycoside in the family of drugs known as antibiotics, a custom-made pharmacy drug primarily prescribed to treat bacterial infections. Gentamicin is a bacteria killer and is often administered to treat infections of the skin, eye, blood, lungs, stomach, central nervous system, intestines and more.


Gentamicin is a powerful antibiotic and should only be used by patients under the care of a physician who can monitor their dosage and progress. Your compounding pharmacist can provide you with a number of different forms of delivery of this antibiotic—ointments and creams, solutions, and injectables for muscular or intravenous administration. Follow your physician's directions exactly on usage and dosage, etc. Consult with your compounding pharmacist or physician if you have questions during your course of treatment.


With all drugs, side effects are possible. Watch for side effects and contact your physician right away if you feel they are growing in intensity or lingering. Some of the most general side effects experienced have been:

  • Vomiting
  • Upset Stomach
  • Pale Skin
  • Increased Thirst
  • Fatigue

Severe Side Effects:

Unfortunately some patients may experience severe side effects that require immediate medical treatment. Ask your physician for a complete list of possible severe side effects. If you experience any side effects that feel severe, always seek immediate medical attention. A partial list of some of the possible severe side effects is provided below for your convenience:

Allergic Reaction

  • Closing Throat Feeling
  • Shortness of Breath
  • Fainting
  • Swelling (especially lips, face, and/or tongue)
  • Rash or Hives

Other Possible Severe Side Effects:

  • Decreased Hearing
  • Ringing Ears
  • Lack of Need to Urinate
  • Low Urination
  • Seizures
  • Extreme Watery Diarrhea
  • Abdominal Cramps
  • Dizziness
  • Feeling Unsteady
  • Clumsiness
  • Numbness
  • Tingling Skin
  • Muscle Twitch


This drug may be contraindicated for pregnant and breastfeeding women. Do not take this drug if you are pregnant or breastfeeding. Consult with your doctor for more information and to discuss your options.

Extreme Caution Warranted:

This drug may not be suitable for pediatric or geriatric use. Ask your doctor.

All patients considering use of this drug should discuss their medical history with their physician and make them aware of any medications, drugs, or supplements that they are currently using or have recently used.

  • "It is rare to find health professionals who are so willing to educate the patient on what they need to know."

    Clair C. | West Hollywood, CA