Horrific drug. I was prescribed it for anxiety-related insomnia,...

Horrific drug. I was prescribed it for anxiety-related insomnia, but only took half-doses (7.5 mg) every third night or so. Still, I began having sharp electric jolts in my head upon awakening, eventually getting to the point that I was afraid to sleep for fear of the terrifying explosions in my head that would be triggered by saccadic ocular motion, pulse, or sometimes nothing at all. They go away within about 10-30 minutes. The net effect on sleep was devastating, of course, and with its "20-40 hour" half-life and the rule of thumb that it takes 7 half-lives to clear, even 6 days after my last dose I have been feeling residual effects. This is apparently rare and your mileage may vary, but the doc can be very quick to prescribe something that's dangerously powerful. Flushing these nasty things!