My dog ate NSAIDs – what should I do?

Updated 2026-09-30 · 2 sources

Based on: US FDA – Center for Veterinary Medicine, Pet Poison Helpline

Call a vet now

Call your vet or the nearest emergency vet right now. NSAIDs can harm dogs and may cause serious effects including stomach and intestinal ulcers, kidney failure, liver failure, or death.

What to do right now

  1. Call your vet or the nearest emergency vet
  2. Note what was eaten, how much, and when
  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 your dog any human medicine

Why it can be dangerous

Human NSAIDs such as aspirin, ibuprofen, and naproxen may not be right for pets and may be harmful.[1] Serious side effects in dogs can include stomach and intestinal ulcers, kidney failure, liver failure, and death in some cases.[1]

Signs to watch for

  • Vomiting
  • Diarrhea
  • Lethargy
  • Seizures
  • Abdominal pain
  • Decreased appetite
  • Decreased activity level
  • Stomach and intestinal ulcers

What the experts say

“Other, more serious side effects in dogs and cats include ulcers in the stomach and intestines, perforations (holes) in the stomach and intestines, kidney failure, liver failure, and even death in some cases.”

— US FDA – Center for Veterinary Medicine [1]
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.

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Common questions

How much may be dangerous?

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

Why can this be serious?

Serious side effects in dogs can include ulcers in the stomach and intestines, kidney failure, liver failure, and death in some cases.[1]

Are human NSAIDs safe for dogs?

Human NSAIDs such as aspirin, ibuprofen, and naproxen may not be right for pets and may be harmful.[1]

Sources

  1. US FDA – Center for Veterinary Medicine
  2. 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 cats →

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