Acetaminophen has come under scrutiny for claims that taking too much can cause liver damage. Acetaminophen is found in more than just Tylenol though. It is an ingredient in Excedrin, cold medications, and many prescription medications including oxycodone. Although there are safety concerns with acetaminophen (and almost any other drug), it has many benefits. To prevent liver damage, never take more Tylenol or other acetaminophen drug than is recommended. Follow the links below to find WebMD's comprehensive coverage about acetaminophen and Tylenol, health risks, benefits, safety, and much more.