My cat ate Firocoxib – what should I do?

Updated 2026-09-30 · 1 sources

Based on: Pet Poison Helpline

Call a vet now

Call your vet or the nearest emergency vet right now. Firocoxib can cause severe gastric ulceration in toxic amounts.

What to do now

What to do right now

Note what, how much and when.
Bring the packaging.
Keep your cat calm.
Remove what is left.

Don't

Do not make your cat vomit unless a vet tells you to.
Do not give any human medicine.

Why it can be dangerous

Firocoxib is a veterinary-specific non-steroidal anti-inflammatory drug (NSAID).^[1] When ingested in toxic amounts, NSAIDs can result in severe gastric ulceration.^[1]

Signs to watch for

vomiting
diarrhea
lethargy
seizures
kidney failure
abdominal pain
death

If your pet is struggling to breathe, has collapsed, is having a seizure or can't stand up: go to the nearest vet now.

Not sure how serious it is?

OkPaw asks a few quick questions about your pet and tells you in 30 seconds whether it can wait. Free on Google Play for Android.

OkPaw is on Android now – an iPhone version is on its way.

Common questions

How much Firocoxib is dangerous?

Call your vet or the nearest emergency vet right now.

Which signs should I watch for?

Call your vet or the nearest emergency vet right now.

What should I do now?

Note what, how much and when, and bring the packaging.

Sources

Pet Poison Helpline

How this page was made: written with the help of AI from the sources below, then checked claim by claim against those sources. Urgency levels follow OkPaw’s fixed safety rules. It is guidance, not a diagnosis. How we write our pages

The same page for dogs →