Is Naproxen Toxic to Pets?
Yes — naproxen is toxic to cats. Yes — naproxen is toxic to dogs.
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.
- Toxic compound
- Naproxen
- Toxic parts
- Tablets
- Also known as
- aleve
Symptoms
Cats (toxic)
- Vomiting (sometimes with blood)
- Black tarry stool
- Not eating
- Increased thirst and urination
- Lethargy
- Seizures at high doses
Dogs (toxic)
- Vomiting (sometimes with blood)
- Black tarry stool
- Not eating
- Increased thirst and urination
- Lethargy
- Seizures at high doses
What to do
If your 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.
If your dog 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 dog 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. Common signs include vomiting (sometimes with blood), black tarry stool, not eating.
Is naproxen toxic to dogs?
Yes — naproxen is toxic to dogs. Common signs include vomiting (sometimes with blood), black tarry stool, not eating.
Which parts of naproxen are toxic?
Tablets.
What makes naproxen toxic?
Naproxen.