Coffee and Tylenol dont mix!!

October 1, 2007 - Researchers at the University of Washington discovered that drinking large amounts of caffeine with the painkiller acetaminophen - commonly known as Tylenol in the USA - can cause liver damage. Although the study was conducted by exposing bacteria to "magadoses" of acetaminophen, its affect on humans has not been fully determined. Results published in Chemical Research in Toxicology.