Is Naproxen Toxic to Cats?
Yes — naproxen is toxic to cats.
PawSafe Check is for general information only and is not veterinary advice. Always contact your veterinarian or a poison control service if you think your pet has been exposed.
Symptoms to watch for
- Vomiting (sometimes with blood)
- Black tarry stool
- Not eating
- Increased thirst and urination
- Lethargy
- Seizures at high doses
Toxic parts
Tablets
Toxic compound
Naproxen
What to do now
- Call your vet or a pet poison control line immediately — don't wait for symptoms.
- Do not induce vomiting unless a vet tells you to.
- Bring the plant, label or packaging with you so the vet knows exactly what your cat ate.
- Note roughly how much was eaten and when.
Good to know
Naproxen lasts a long time in pets and causes ulcers and kidney damage at low doses.
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Frequently asked questions
Is naproxen toxic to cats?
Yes — naproxen is toxic to cats. Naproxen lasts a long time in pets and causes ulcers and kidney damage at low doses.
What are the symptoms of naproxen poisoning in cats?
Vomiting (sometimes with blood). Black tarry stool. Not eating. Increased thirst and urination. Lethargy. Seizures at high doses.
What should I do if my cat ate naproxen?
Call your vet or a pet poison control line immediately — don't wait for symptoms. Do not induce vomiting unless a vet tells you to. Bring the plant, label or packaging with you so the vet knows exactly what your cat ate. Note roughly how much was eaten and when.
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