FDA decision on Xyrem

Xyrem (sodium oxybate), which was recently denied as a fibromyalgia treatment, is on the list because of the risk of death. Xyrem is approved for narcolepsy symptoms and is a Schedule III federally controlled substance.
http://chronicfatigue.about.com/b/2011/02/14/fda-watch-for-fibromyalgia-chronic-fatigue-syndrome-drugs.htm