Is Cats Safe?
Is Amoxicillin / Clavamox Safe for Cats?
Caution — Amoxicillin / Clavamox can be risky for cats.
Amoxicillin / Clavamox isn't classed as outright toxic, but it warrants caution around cats — FDA-approved for cats with no unique feline toxicity — but it's prescription-only; never give leftover human antibiotics. Overdose can cause severe vomiting; rare allergy.. When in doubt, keep it out of reach and ask your veterinarian.
| Category | Medicine |
|---|---|
| Toxic principle | FDA-approved for cats with no unique feline toxicity — but it's prescription-only; never give leftover human antibiotics. Overdose can cause severe vomiting; rare allergy. |
| Also known as | amoxicillin, clavamox, amoxicillin clavulanate, antibiotic |
Signs to watch for in cats
- Vomiting
- Diarrhea
- Loss of appetite
- Rare allergic reaction (rash, swelling, breathing trouble). Use only as prescribed by your vet
If your cat may have been exposed to Amoxicillin / Clavamox:
- 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.
Frequently asked questions
Is Amoxicillin / Clavamox safe for cats?
Amoxicillin / Clavamox 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 Amoxicillin / Clavamox?
Reported signs include: Vomiting, Diarrhea, Loss of appetite, Rare allergic reaction (rash, swelling, breathing trouble). Use only as prescribed by your vet.
What makes Amoxicillin / Clavamox toxic to cats?
The harmful component reported for Amoxicillin / Clavamox is FDA-approved for cats with no unique feline toxicity — but it's prescription-only; never give leftover human antibiotics. Overdose can cause severe vomiting; rare allergy.. Cats metabolise many such compounds poorly, so even small exposures can cause problems.
How much Amoxicillin / Clavamox is dangerous to cats?
There is no established "safe" amount — sensitivity varies by cat, and small exposures can still cause signs. Treat any exposure as potentially serious rather than waiting to see how much was involved.
What should I do if my cat ate Amoxicillin / Clavamox?
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).