Is Celecoxib (Celebrex) Safe for Cats?
Why it’s a problem
Cats metabolize NSAIDs far more slowly than dogs or people, so celecoxib builds up and attacks the stomach lining and kidneys. Ulcers, GI bleeding, and acute kidney failure have been reported after feline NSAID exposures. A single human-strength capsule is a serious overdose for a cat.
How to keep your pet safe
Keep all human anti-inflammatories sealed away from cats, and never give a cat any NSAID unless a veterinarian has prescribed it for that cat. Pain control in cats requires veterinary supervision.
Warning signs to watch for
Vomiting (sometimes with blood), drooling, refusal to eat, belly pain, hiding, extreme lethargy; progressing to weakness, dehydration, and little or no urine from kidney failure.
When to call the vet
Call a veterinarian or a pet poison hotline immediately, even if your cat appears fine. Cats with NSAID poisoning can deteriorate quickly, and early treatment improves survival.
Common questions
My cat chewed into my Celebrex bottle — what should I do?
Treat it as an emergency. Contact a vet or pet poison hotline right away, even if your cat looks normal, because NSAID damage in cats can develop before obvious symptoms appear.
Why is one capsule such a big deal for a cat?
Cats are small and clear NSAIDs very slowly, so a human capsule delivers far more drug than a cat can handle. The result can be stomach ulcers and kidney failure.
Do vets ever give NSAIDs to cats?
Some veterinary NSAIDs are approved for very limited, closely supervised use in cats. Self-dosing with human products is never part of that.
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).