I am currently treated for both PTSD and severe back problems, as well as painful upper-body spasms. Meds I'm on are; Tizanidine (Zanaflex), as a muscle relaxant; Clonazepam (Rivotril), as an anxiolitic, and as an adjuvant to the Tizanidine; Finally, Zopiclone for nighttime insomnia... Because Zopiclone only helps occasionally (My Psychologist feels that my level of anxiety is so high at night, that I fight-off the effects), my doctor put me on Oxazepam (Serax) for bedtime use instead. My pharmacist advised me on how long I should wait to take it if I've used Clonazepam, but, I still do not sleep anyway and therefore still am up-and-about most of the night (Pain included in the equation). I'll most likely stop using it soon, but would like to know how long I should wait before I can safely use the Clonazepam. Anyone has an idea? It would be most appreciated... Tnx.