Acetaminophen is marketed as an effective painkiller that is safer than non-steroidal anti-inflammatory drugs (NSAIDs) such as aspirin or ibuprofen, which are associated with more complaints of stomach discomfort or bleeding. However, because acetaminophen and products containing that drug are available over-the-counter, a common misconception is that they are not dangerous. For some people, even going slightly over the recommended amount can cause acute liver failure or kidney failure - conditions that can have deadly consequences.
Unfortunately, this hit all too close to home. In 2012, a good friend of mine went to the doctor for what he thought was back strain. He was prescribed Tylenol 3.