Ibuprofen is considered unsafe for dogs or cats and should never be used without direction from a veterinarian, according to the Veterinary Information Network. Never give human medication to pets without consulting a veterinarian.
Ibuprofen can cause several side effects in dogs that do not occur in humans. These can include stomach ulceration, kidney failure and neurological symptoms such as tremors, seizures and coma. The most common first line treatment for ibuprofen toxicity is to induce vomiting in the dog, but this should only be attempted after consulting a veterinarian. The symptoms and odds of recovery are highly dependent on how quickly action is taken and the amount of ibuprofen that the animal was exposed to.