Last updated on RxList: 11/12/2020
Genoptic Side Effects Center

What Is Genoptic?

Genoptic (gentamicin sulfate ophthalmic) is an aminoglycoside antibiotic used to treat bacterial infections (such as blepharitis, conjunctivitis) of the eye and the skin around the eyes (such as eyelids). It is also used to prevent infection after eye injury or surgery.

What Are Side Effects of Genoptic?

Common side effects of Genoptic include:

  • eye stinging/burning/redness or temporary blurred vision.

Contact your doctor if you notice side effects of Genoptic such as:

  • new or worsening eye symptoms (such as pain, swelling, thick discharge or pus) or
  • signs of an allergic reaction including rash, itching, or swelling.

Dosage for Genoptic

Instill one or two drops of Genoptic into the affected eye every 4 hours. In severe infections, dosage may be increased to as much as two drops once every hour.

What Drugs, Substances, or Supplements Interact with Genoptic?

The effects of some drugs can change if you take other drugs or herbal products at the same time.

Genoptic During Pregnancy and Breastfeeding

This can increase your risk for serious side effects or may cause your medications not to work correctly. Tell your doctor about all the products you use (including prescription drugs, nonprescription drugs, and herbal products) before starting treatment with this product. During pregnancy, Genoptic should be used only when prescribed. This drug may pass into breast milk. Consult your doctor before breastfeeding.

Additional Information

Our Genoptic (gentamicin sulfate ophthalmic) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.


What causes dry eyes? See Answer
Genoptic Consumer Information
SIDE EFFECTS: Eye stinging/burning/redness or temporary blurred vision may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Use of this medication for prolonged or repeated periods may result in other types of eye infections, including fungal infections. Stop using this medication and contact your doctor if you notice new or worsening eye symptoms (such as pain, swelling, thick discharge or pus).

Rarely, gentamicin products used in the eye may be absorbed and may cause serious side effects. Tell your doctor immediately if any of these rare but serious side effects occur: easy bruising/bleeding, mental/mood changes (such as hallucinations).

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Read the entire patient information overview for Genoptic (Gentamicin Sulfate Ophthalmic)


Pink Eye (Conjunctivitis) Symptoms, Causes, Treatments See Slideshow
Genoptic Professional Information


Bacterial and fungal corneal ulcers have developed during treatment with gentamicin ophthalmic preparations.

The most frequently reported adverse reactions are ocular burning and irritation upon drug instillation, nonspecific conjunctivitis, conjunctival epithelial defects, and conjunctival hyperemia.

Other adverse reactions which have occurred rarely are allergic reactions, thrombocytopenic purpura, and hallucinations.

Read the entire FDA prescribing information for Genoptic (Gentamicin Sulfate Ophthalmic)

© Genoptic Patient Information is supplied by Cerner Multum, Inc. and Genoptic Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.

Health Solutions From Our Sponsors