Can Dogs Have Naproxen (Aleve)? No — More Toxic Than Ibuprofen
This food is NOT safe for dogs. Keep it away from your pet.
Naproxen (Aleve) is more toxic to dogs than ibuprofen and one of the most dangerous common medications for pets. Even a single tablet can be fatal to small dogs.
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Warning Signs & Symptoms
Severe vomiting, bloody diarrhea, gastric ulcers, acute kidney failure, neurological symptoms, death.
If Your Dog Ate This
Call vet or ASPCA Poison Control 888-426-4435 immediately.
What to Avoid
all naproxen — Aleve and all generic forms
Preparation & Serving
Call vet or ASPCA Poison Control 888-426-4435 immediately. This is a life-threatening emergency requiring urgent veterinary intervention.
Did you know?
Naproxen has a half-life of 12-17 hours in humans but over 74 hours in dogs — meaning it stays active in a dog's system three to six times longer causing cumulative toxicity from what seems like a single dose.
Portions & nutrition
- Serving (small dog)
- never
- Serving (medium dog)
- never
- Serving (large dog)
- never
- Calories (per 100g)
- 0
- Safe frequency
- Never
Source
What You Need to Know
Naproxen is an NSAID with a very long half-life in dogs meaning it stays in the system far longer than in humans causing prolonged toxicity. A single 220mg tablet can be lethal to a dog under 10kg. Dogs have no safe dose of naproxen. Keep all Aleve and naproxen products completely away from dogs.
Breed-Specific Notes
All dogs at risk — small dogs face lethal doses from a single tablet.
Not sure what to do next? Read our emergency guide What to Do If Your Dog Eats Something Toxic
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