Is Ibuprofen safe for cats and dogs?
| Species | Verdict |
|---|---|
| Cats | Toxic |
| Dogs | Toxic |
Severity: Severe
Read the full first-aid guide: what to do if your pet ate something toxic
In the US this drug sits in nearly every medicine cabinet as Advil or Motrin, and a dropped tablet or a chewed-open bottle is one of the most common human-medication accidents Pet Poison Helpline hears about. Ibuprofen works by blocking prostaglandins, the same chemical messengers that protect the stomach lining, support kidney blood flow, and help blood clot normally in both dogs and cats -- so shutting them down doesn't just relieve pain, it removes the body's own protection in three organ systems at once. VCA Animal Hospitals describes the typical progression as gastrointestinal ulceration first, then kidney and liver damage, with neurologic signs such as tremors and seizures at the more severe end. ASPCA Professional's clinical guidance is explicit that cats, and ferrets, are more sensitive to ibuprofen than dogs, meaning an amount a dog might shrug off can be far more serious for a cat. None of this changes what to do in either species: any ibuprofen exposure goes straight to a veterinarian or a poison control hotline, not a wait-and-see approach, because the drug's damage to the stomach and kidneys can still be building after the pet looks fine.
Facts and examples
- Pet Poison Helpline identifies ibuprofen by its common US brand names Advil and Motrin, and describes it as a human-specific NSAID causing vomiting and diarrhea with blood, kidney damage ranging from excessive urination to no urine production, and in severe cases depression, coma, and death. (source, verified 2026-07-28)
- ASPCA Professional's clinical guidance on ibuprofen states that cats and ferrets are more sensitive to ibuprofen than dogs, so much lower amounts can be much more serious for them. (source, verified 2026-07-28)
- VCA Animal Hospitals explains ibuprofen toxicity works by blocking prostaglandins that normally protect the gastrointestinal tract, kidneys, liver, and blood clotting function, producing GI irritation and ulceration first and, at higher exposure, liver, kidney, and neurologic damage. (source, verified 2026-07-28)
- ASPCA Animal Poison Control Center is reachable at 888-426-4435, 24 hours a day, 365 days a year. (source, verified 2026-07-28)
- Pet Poison Helpline is reachable at 855-764-7661, available 24/7 with board-certified specialists. (source, verified 2026-07-28)
Verdict re-verified against petpoisonhelpline.com, 2026-07-28 — confirmed unchanged. Source
This page is for general information only and is not veterinary advice, diagnosis, or treatment. If your pet is showing symptoms, or you think they ate or touched something dangerous, contact your veterinarian or a pet poison-control hotline immediately.
Last verified 2026-07-28