Over-the-counter pain medications that ARE TOXIC to dogs: IBUPROFEN (ADVIL, MOTRIN) AND NAPROXEN (ALEVE)- are toxic at very low doses. Dogs are not able to eliminate and detoxify these medications. These drugs can cause kidney damage, liver damage and stomach ulcers. ACETAMINOPHEN (TYLENOL) – is toxic at larger doses (as little as 2 pills in… Read more