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Drugs A–Z

Neomycin Sulfate, Polymyxin B Sulfate and Gramicidin

Neomycin Sulfate, Polymyxin B Sulfate and Gramicidin is a prescription medicine. The sections below reproduce one FDA label for it, named under "Label". Products in other forms, strengths or from other makers have their own labels, which can differ.

Type
Prescription only (Rx)
Taken
Ophthalmic
Label
Bausch & Lomb Incorporated, revised September 18, 2024 · full label on DailyMed
Generic
FDA-approved (2 companies) · details

What it is used for

Neomycin and polymyxin B sulfates and gramicidin ophthalmic solution is indicated for the topical treatment of superficial infections of the external eye and its adnexa caused by susceptible bacteria. Such infections encompass conjunctivitis, keratitis and keratoconjunctivitis, blepharitis and blepharoconjunctivitis.

Who should not take it (contraindications)

This product is contraindicated in those persons who have shown hypersensitivity to any of its components.

Warnings

NOT FOR INJECTION INTO THE EYE. This product should never be directly introduced into the anterior chamber of the eye or injected subconjunctivally. Topical antibiotics, particularly neomycin sulfate, may cause cutaneous sensitization. A precise incidence of hypersensitivity reactions (primarily skin rash) due to topical antibiotics is not known. The manifestations of sensitization to topical antibiotics are usually itching, reddening and edema of the conjunctiva and eyelid. A sensitization reaction may manifest simply as a failure to heal. During long-term use of topical antibiotic products, periodic examination for such signs is advisable, and the patient should be told to discontinue the product if they are observed. Symptoms usually subside quickly on withdrawing the medication. Applications of products containing these ingredients should be avoided for the patient thereafter (see PRECAUTIONS : Error! Hyperlink reference not valid. ).

Precautions

General As with other antibiotic preparations, prolonged use of this product may result in overgrowth of nonsusceptible organisms including fungi. If superinfection occurs, appropriate measures should be initiated. Bacterial resistance to this product may also develop. If purulent discharge, inflammation or pain becomes aggravated, the patient should discontinue use of the medication and consult a physician. There have been reports of bacterial keratitis associated with the use of topical ophthalmic products in multiple-dose containers which have been inadvertently contaminated by patients, most of whom had a concurrent corneal disease or a disruption of the ocular epithelial surface (see PRECAUTIONS : Information for Patients ). Allergic cross-reactions may occur which could prevent the use of any or all of the following antibiotics for the treatment of future infections: kanamycin, paromomycin, streptomycin, and possibly gentamicin. Information for Patients Patients should be instructed to avoid allowing the tip of the dispensing container to contact the eye, eyelid, fingers, or any other surface. The use of this product by more than one person may spread infection. Patients should also be instructed that ocular products, if handled improperly, can become contaminated by common bacteria known to cause ocular infections. Serious damage to the eye and subsequent loss of vision may result from using contaminated products (see PRECAUTIONS : Error! Hyperlink reference not valid. ). If the condition persists or gets worse, or if a rash or other allergic reaction develops, the patient should be advised to stop use and consult a physician. Do not use this product if you are allergic to any of the listed ingredients. Keep tightly closed when not in use. Keep out of reach of children. Carcinogenesis, Mutagenesis, Impairment of Fertility Long-term studies in animals to evaluate carcinogenic or mutagenic potential have not been conducted with polymyxin B sulfate or gramicidin. Treatment of cultured lymphocytes in vitro with neomycin increased the frequency of chromosome aberrations at the highest concentration (80 mcg/mL) tested. However, the effects of neomycin on carcinogenesis and mutagenesis in humans are unknown. Polymyxin B has been reported to impair the motility of equine sperm, but its effects on male or female fertility are unknown. Pregnancy: Teratogenic Effects Adequate animal reproductive studies have not been conducted with neomycin, polymyxin B, or gramicidin. It is also not known whether this product can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. This product should be given to a pregnant woman only if clearly needed. Nursing Mothers It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when this product is administered to a nursing woman. Pediatric Use Safety and effectiveness in pediatric patients have not been established.

Side effects (adverse reactions)

Adverse reactions have occurred with the anti-infective components of this product. The exact incidence is not known. Reactions occurring most often are allergic reactions including itching, swelling, and conjunctival erythema (see WARNINGS ). More serious hypersensitivity reactions, including anaphylaxis, have been reported rarely. Local irritation on instillation has also been reported. To report SUSPECTED ADVERSE REACTIONS, contact Bausch & Lomb Incorporated at 1-800-553-5340 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Pregnancy

Teratogenic Effects Adequate animal reproductive studies have not been conducted with neomycin, polymyxin B, or gramicidin. It is also not known whether this product can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. This product should be given to a pregnant woman only if clearly needed.

Breastfeeding

It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when this product is administered to a nursing woman.

Use in children

Safety and effectiveness in pediatric patients have not been established.

Is there a generic Neomycin Sulfate, Polymyxin B Sulfate and Gramicidin?

Yes. The FDA has approved generic Neomycin Sulfate, Polymyxin B Sulfate and Gramicidin from 2 companies whose approvals are active. The earliest of these was approved in 1996.

An FDA approval does not always mean the generic is already in pharmacies: patent disputes and settlements can delay a launch for years. Your pharmacist can tell you whether a generic is actually available and covered by your plan.

The FDA rates these generics as therapeutically equivalent to the brand ("A" rating): same active ingredient, strength, dosage form and effect. Pharmacists can usually substitute them unless the prescriber says otherwise.

Companies with an approved generic

Bausch And Lomb Inc, Sciegen Pharms

Source: Drugs@FDA (via openFDA), checked October 29, 2026. Marketing status is what companies report to the FDA; whether a pharmacy stocks a product, and what your insurance covers, can differ.

Dosage:
we do not reproduce dosing instructions. The right dose depends on the person and the condition and is set by the prescriber or pharmacist. Dosage section of the full label.

Neomycin sulfate, polymyxin b sulfate and gramicidin in the news

We have not covered this medicine yet. Latest news

Recalls

No recalls matched to this medicine in FDA enforcement reports from the last 3 years (or older ones still open). Search all recalls

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Source: FDA structured product labeling, retrieved through openFDA. Label text is shown as published by the FDA, without editing; long sections are shortened, marked […]. openFDA data are not validated for clinical use — always check the current label and ask a doctor or pharmacist about your own treatment. Set ID e6f8d2f6-adff-4ae1-982c-45562f0a8e28.


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Important: this content is for informational purposes only and is not medical advice, a prescribing instruction, or a recommendation to act. Consult a licensed healthcare professional before taking any medication.

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