Acetaminophen is the most popular painkiller in the US. It is best known by the brand name Tylenol but is sold under 97 different brand names. It is known as paracetamol in many parts of the world. It is also sold in combination with other drugs in more than 100 products.

During cold and flu season, people who take acetaminophen for arthritis are at risk for acetaminophen poisoning. Taking just twice the recommended dose of acetaminophen can cause acute liver failure. Unfortunately, this has already happened to an alarming number of people because it isn