Diazepam was patented in 1959 by Hoffmann-La Roche and place available officially in 1963. At some time, diazepam was a transparent enhancement into the earlier era of hypnotic anxiolytics — the barbiturates. The effects were also considered an improvement on its progenitor, Librium.Flutazolam (Coreminal) is mainly used in Japan as a far more sed