Product details
Neo-Poly-Bac Ophthalmic Ointment is a broad-spectrum triple antibiotic eye ointment used to treat bacterial infections in the eyes and on the eyelids.
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This sterile ophthalmic ointment contains neomycin, polymyxin B, and bacitracin for broad-spectrum antibacterial coverage.
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Does not contain any steroidal ingredients
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Use with caution in cats; in some cases, serious allergic reactions have been reported.
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May be prescribed for other animal species; please consult your veterinarian.
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While this drug does not have an FDA-approved indication for all animal uses, it is commonly accepted for veterinarians to prescribe this medication for use in animals.
*Please note: this is a generic medication. Product packaging and appearance, including size, color, and shape, may differ from the description or images provided and are subject to manufacturer availability.
Sourced directly from the manufacturer or their approved distributor. Guaranteed genuine product backed by the manufacturer.
For
Dogs, Cats, and Horses
Active ingredient(s)
Neomycin sulfate, Polymyxin B sulfate, Bacitracin zinc
Common brand names
Vetropolycin
Drug class
Broad-spectrum combination antibacterial, Ophthalmic
Product strength & size
This sterile ophthalmic ointment contains 3.5 mg of neomycin base, 10,000 units of polymyxin B, and 400 units of bacitracin per 1 gram of ointment, and is supplied in a 3.5-gram tube with an ophthalmic tip. Please ensure the selected product is appropriate for your pet, as recommended by your veterinarian.
For current availability, please refer to the product selection above.
Usage
Neo-Poly-Bac Ophthalmic Ointment should be applied as directed by your veterinarian.
For general ophthalmic use:
Wash your hands thoroughly with soap and water before and after application.
Pull your pet’s lower eyelid down gently, then apply the prescribed amount of ointment into the pocket between the eyelid and the eyeball. If using on the eyelids, apply the prescribed amount of ointment to the affected area as instructed by your veterinarian.
Do NOT allow the tip of the tube to touch any surface, including your hands or your pet’s face and eyes, as this will contaminate the sterile surface.
If using multiple eye medications or products, separate dosing by at least 5 minutes. Eye drops should be used before eye ointments to allow for proper absorption.
Complete the entire course of treatment as prescribed, even if your pet's condition has improved. Failure to complete the entire course of treatment may cause recurrence or worsening of the infection. Contact your veterinarian ahead of time if your pet needs a refill.
Missed doses
Administer the dose as soon as possible. If it is almost time for the next dose, skip the missed dose and continue with the regular schedule. Do not apply two doses at once.
Storage
Store in a cool, dry place at a controlled temperature between 59 to 77°F. Keep tightly closed when not in use and out of the reach of children and pets. Store away from heat and direct sunlight. Do not store in the bathroom, near the kitchen sink, or in damp places. The medicine may break down if exposed to heat or moisture.
Side effects
Possible side effects may include (but are not limited to): mild redness, stinging, or itching of the eye/eyelid(s); increased tear production; or temporary blurred vision and/or squinting after application.
Contact your veterinarian immediately if your pet is persistently squinting or if you notice severe inflammation, redness, or irritation of the affected eye/eyelid.
Serious allergic reactions have been reported in cats within 4 hours of applying certain ophthalmic antibiotic medications. Monitor for any signs of a hypersensitivity reaction, including facial swelling or labored/noisy breathing.
Notify your veterinarian if your pet experiences any of the effects described above, or if you notice any other side effects that are persistent or troublesome.
If you notice anything unusual, please consult your veterinarian.
Precautions
Contact your veterinarian if your pet’s condition does not improve or worsens within 2 to 3 days after starting this medication.
Do NOT touch the tip of the tube with your hands or allow the tip to touch any surface, including your pet’s eyes. Contact with any surface may contaminate the product.
Use with caution in cats; in some cases, serious allergic reactions have been reported. These reactions have typically occurred within 4 hours of application.
Safe use of this medication has not been established in breeding, pregnant, or lactating animals.
Do not administer to animals with a known history or suspected allergy/hypersensitivity to this medication or any of its ingredients. Allergic reactions to medications may occur. Be sure to inform Vetsource and your veterinarian if your pet has any known drug sensitivities or allergies.
If your pet displays symptoms of an allergic reaction, discontinue therapy and call your veterinarian immediately or seek emergency veterinary attention. Symptoms may include (but are not limited to): swollen lips, tongue, face, or airways, difficulty breathing, agitation, profuse salivation, and widespread hives or itching.
Drug and food interactions
Ophthalmic medications are applied topically to the eyes and are not absorbed into the body in the same manner as oral or injectable medications. Because of this, there is limited drug interaction information for these medications; however, interactions may still be possible.
Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together.
Please ensure your veterinarian is aware of all medications and supplements that your pet is currently receiving. Your veterinarian may prescribe multiple medications, even if a potential drug interaction may occur. In these instances, your veterinarian may adjust the dosages or monitor your pet more closely.
Adverse reactions
If you are concerned that your pet has experienced an adverse reaction to this medication, please contact Vetsource Pet Owner Care at 877-738-4443.
Last revised: 5/06/2025