I didn't quite get that, ralfp What do you mean by the half-life comment? Are you saying that Valium's effects could last as long as 100 hours? Also, the way I read your post (maybe I misread), the implication was that Sonata was safer because Valium could increase the chance "of being dragged off the aircraft in handcuffs". I didnt follow that, so was wondering if you would expound on the thought, please