Members of an FDA advisory panel have overwhelmingly recommended that the FDA add a black box warning to the labels of prescription pain and cold products that contain acetaminophen.  Can cause liver damage.  Is in Tylenol?  Contested by drug companies.  "While the Food and Drug Administration is weighing a ban on such combination products -- often marketed to consumers with colds or other mild illnesses, the industry instead urged a widespread effort to warn buyers about the risks of liver damage linked to the ingredient." http://www.reuters.com/article/governmentFilingsNews/idUSN2940629320090629 
acetaminophen synonyms  C8H9NO2 N-(4-hydroxyphenyl)acetamide
TYLENOLŪ
(acetaminophen)

 

rxlist.com/tylenol-drug.htm

C8H9NO
Tylenol (acetaminophen) structural formula illustration

FDA To Require Boxed Warnings on Serious Mental Health Risks for Chantix and Zyban * 7-1-09

Other medications - Chemical Formulas  *