Xanax, commonly described by its generic name alprazolam, was formerly developed by Upjohn Labs in the late 1960’s as a sleep aid with muscle relaxant properties, but experts soon learned it had other properties, too. Xanax, in the category known as benzodiazepines, works to suppress the overreaction of the central stressed system. It was found to work for panic and anxiety disorder, and the FDA approved these uses in 1981. Xanax has been one of the very most successful, but worrisome, blockbusters in years past due to a serious addiction potential. Patients also develop tolerance, demanding higher and higher doses.