My dog 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. In toxic amounts, Firocoxib can cause severe gastric ulceration.

What to do now

What to do right now

  1. Call your vet or the nearest emergency vet.
  2. Note what, how much and when your dog ate.
  3. Bring the packaging.
  4. Keep your dog calm.
  5. Remove what is left.

Don't

  • Do not make your dog 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.

Get it on Google Play

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

Common questions

How much Firocoxib is dangerous?

Toxic amounts can cause severe gastric ulceration.[1]

What should I do now?

Call your vet or the nearest emergency vet right now, and note what, how much and when your dog ate.

What should I bring to the vet?

Bring the packaging.

Sources

  1. 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

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