Is Cats Safe?
Is Terramycin (eye ointment) Safe for Cats?
Caution — Terramycin (eye ointment) can be risky for cats.
Terramycin (eye ointment) isn't classed as outright toxic, but it warrants caution around cats — FDA-approved and widely used for feline eye infections, but it contains polymyxin B, which has rarely caused anaphylaxis in cats — so use only as prescribed and watch closely.. When in doubt, keep it out of reach and ask your veterinarian.
| Category | Medicine |
|---|---|
| Also known as | terramycin, oxytetracycline polymyxin, eye ointment |
Signs to watch for in cats
Most cats tolerate it; rarely facial swelling, weakness, vomiting, breathing distress within hours of application. Use only as prescribed; stop and seek care for any acute reaction.
If your cat may have been exposed to Terramycin (eye ointment):
- Don't wait for symptoms; don't induce vomiting unless a professional tells you to.
- Note what and how much, and take any packaging with you.
- Call your vet or a 24/7 line now — Pet Poison Helpline 855-764-7661 · ASPCA 888-426-4435.
Cat-safe alternatives
Browse all Medicine for cats · or check another item.
Source: Hume-Smith et al. JFMS 2011; VCA; Zoetis label ↗
Frequently asked questions
Is Terramycin (eye ointment) safe for cats?
Terramycin (eye ointment) is best treated with caution — it isn't classed as toxic but can cause problems for cats in some forms or amounts.
What are the symptoms if a cat is exposed to Terramycin (eye ointment)?
Reported signs include: Most cats tolerate it; rarely facial swelling, weakness, vomiting, breathing distress within hours of application. Use only as prescribed; stop and seek care for any acute reaction.
What should I do if my cat ate Terramycin (eye ointment)?
Contact your vet or a 24/7 animal poison line right away: Pet Poison Helpline (855-764-7661) or ASPCA Animal Poison Control (888-426-4435).