Danger of aristolochic acid
Wednesday, July 16th, 2008 Since 1990 the U.S. Food and Drug Administration (FDA) has issued warnings about botanical products and dietary supplements containing aristolochic acid.
Now, The Lancet reports a 30 year-old Chinese man who was diagnosed with a bladder tumor after taking the Chinese herb Longdan Xieganwan for at least 5 years. (Use this link if you are not a subscriber to The Lancet.)