PupkeeperToxicEmergency
Dog ate aspirin? What to do
Too much aspirin can cause severe poisoning in dogs, with stomach ulcers, fever, fast breathing, kidney damage and seizures.
If your dog ate or touched this, call your vet or a pet poison line now
United States
Poison lines in other countries: United Kingdom, Australia, Canada, New Zealand
What to do now
- Call your vet or a pet poison line now.
- Keep the packaging and bring it with you.
- Get advice even if your dog seems fine. Toxic amounts need fast treatment.
Don't
- Don't make your dog vomit unless a vet tells you to.
- Don't give aspirin or any NSAID unless your vet tells you to.
Signs to watch for
- Vomiting or other stomach upset
- Low energy
- Fever
- Fast or deep breathing
- Seizures
Why
Aspirin is a salicylate pain reliever. Dogs handle it better than cats, but swallowing too much, or taking it for a long time, can harm the stomach and other organs.
Sources
- Pet Poison Helpline: Aspirin
- Merck Veterinary Manual: Poisoning from Human Over-the-Counter Drugs
- Pet Poison Helpline: NSAIDs
Guide reviewed 9 October 2026.
General information from the sources above, not a diagnosis. When in doubt, call your vet.