Ibuprofen and naproxen can be toxic to dogs and cats, but cats are much more susceptible to this toxicity than dogs are. A single 200-milligram ibuprofen tablet can be toxic to a cat or small- to medium-sized dog; toxic effects can occur rapidly and damage the kidneys and stomach.
How much ibuprofen can you give a dog?
Ibuprofen Dosing Information of Ibuprofen for Dogs. Medication should never be administered without first consulting your veterinarian. The usual dose in dogs is 2.5 to 4 mg per pound (5 to 8 mg/kg) every 12 hours. It is NOT recommended for use in cats.