Is Amoxicillin-clavulanate (Augmentin) Safe for Cats?
Why it’s a problem
Amoxicillin-clavulanate mainly irritates a cat’s stomach and intestines, so drooling, vomiting, and refusal to eat are the usual results of an unsupervised dose. A cat that stops eating is at risk of secondary problems within days. There is also a veterinary version of this combination, which is why self-dosing is never the right path.
How to keep your pet safe
Store Augmentin where a cat cannot paw bottles off a counter, and never give a cat human antibiotics. A vet can prescribe a cat-appropriate version if one is truly needed.
Warning signs to watch for
Drooling, vomiting, diarrhea, refusal to eat, hiding, low energy; large ingestions may cause dehydration and marked lethargy.
When to call the vet
Call your veterinarian or a pet poison hotline with the estimated amount swallowed. If your cat refuses food afterward, treat that as a reason for an exam rather than waiting.
Common questions
My cat swallowed one Augmentin tablet — should I rush to the ER?
A single tablet is more likely to cause an upset stomach than an emergency in a healthy adult cat, but a call to your vet or a poison hotline is still warranted. Kittens and sick cats need faster attention.
Why is my cat drooling after eating my antibiotic?
Drooling usually signals nausea from stomach irritation, which is a common effect of swallowing human antibiotics. Mention it to your vet, especially if it continues or food is refused.
Is the veterinary version of amoxicillin-clavulanate different?
Yes, it is formulated and dosed for cats and dogs, which is one reason human tablets should never be used as a stand-in.
More medications hazards for cats
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate or touched something concerning, contact your veterinarian or a pet poison hotline right away. In the US: Pet Poison Helpline (855) 764-7661, ASPCA Animal Poison Control (888) 426-4435 (fees may apply).