Garamycin Ophthalmic

Generic name: Gentamicin sulfate.

Other brand names: Cidomycin, Gentacidin.

Garamycin Ophthalmic is an aminoglycoside antibiotic. It inhibits the growth of bacteria in the eyes by chemically interfering with their ability to survive. 

Quick Facts About Garamycin Ophthalmic


Used to treat conjunctivitis (pink eye) and other eye infections.

Garamycin Ophthalmic Dosage

Use exactly as prescribed. Finish entire treatment  even if symptoms discontinue. Do not share this medication; can spread infection.

  • Usual adult dose: ophthalmic solution — 1 or 2 drops in affected eye every 4 hours, up to 2 drops each hour. Ophthalmic ointment — apply 1/3-inch strip to affected eye 2 or 3 times per day.
  • Usual child dose: follow doctor’s instructions carefully for children.
  • Missed dose: apply as soon as possible, unless almost time for next dose. In that case, do not apply missed dose; go back to regular schedule.

Garamycin Ophthalmic Side Effects

Overdose symptoms:

no specific information available. If you suspect an overdose, immediately seek medical attention.

Side effects: eye solution — eye irritation with itching, redness, and swelling. Ointment — burning or stinging in the eye.

No known less common or rare Garamycin Ophthalmic side effects.


No Garamycin Ophthalmic drug interactions reported.

No known food/other substance interactions. 

Special Cautions

If pregnant or planning to become pregnant, inform your doctor.

No special precautions apply to seniors.

Follow doctor’s instructions carefully for children.

  • Vision may blur briefly after application of ointment.
  • Should not take if sensitive to or allergic to this or other antibiotics such as Amikin and Tobrex.
  • Ongoing use may cause bacteria or fungi to develop resistance to this medication; contact your doctor if this occurs.
  • Ointment may slow healing of the cornea.

Note: provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Garamycin Ophthalmic side effects, please contact your healthcare provider.