My dog ate naproxen – what should I do?
Call a vet nowCall your vet or the nearest emergency vet right now. Naproxen is very poisonous to dogs, and as little as one 220 mg tablet can cause very serious symptoms, even death, even in a large dog.
What to do right now
- Call your vet or the nearest emergency vet.
- Note what was eaten, how much, and when.
- Bring the packaging.
- Keep your dog calm.
- Remove any naproxen left within reach.
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
Naproxen is very poisonous to dogs.[1] As little as one 220 mg tablet can cause very serious symptoms, even death, even in a large dog.[1] One study defined naproxen doses above 5 mg/kg as gastrointestinal toxicity, above 25 mg/kg as kidney toxicity, and above 50 mg/kg as central nervous system toxicity.[2]
Signs to watch for
Where it is found
What the experts say
“As little as one 220mg tablet can cause very serious symptoms (even death), even in a large dog.”
Not sure how serious it is?
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Common questions
How much naproxen can be dangerous?
As little as one 220 mg tablet can cause very serious symptoms, even death, even in a large dog.[1]
What can naproxen do to a dog?
Naproxen is very poisonous to dogs.[1]
What should I do now?
Call your vet or the nearest emergency vet right now; note what, how much, and when, and bring the packaging.
Sources
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
Nicotine
Onion