According to the Pet Poison Helpline, ibuprofen should not ever be given to dogs unless specifically recommended by a veterinarian. Dogs have a very low tolerance for ibuprofen, and even small amounts can cause an overdose, which can lead to life-threatening complications.
Ibuprofen overdose can cause irritation of the stomach lining and intestines, kidney failure, seizures, coma and death. Even just one regular-strength pill may be enough to cause an overdose in a medium-sized dog, states vetStreet. Aspirin, naproxen and acetaminophen are other common human pain medications that are dangerous for dogs. Dogs that consume ibuprofen need to be seen by a veterinarian immediately as toxicity occurs quickly, and organ damage can already be happening by the time the owner notices symptoms.