About 19 million Americans suffer from anxiety disorders -- everything from fear of flying to obsessive compulsive disorders -- but now researchers say that a supplement, which causes an adrenaline rush, may turn out to be a new way to treat anxiety. The drug called yohimbine, which is made from the bark of the yohimbe tree, has a number of uses, but it is probably best known as a treatment for impotence. Mark Barad, MD, PhD, assistant professor in psychiatry and biobehavioral sciences at the University of California, Los Angeles Neuropsychiatric Institute tells WebMD that yohimbine was used before Viagra so it is a drug that people have a lot of experience with.
