I took Prazosin as well for my c-PTSD. For several years, actually. It was controlling my horrible nightmares. Like seesaw, however, my blood pressure became dangerously low & a blood level increased significantly (I can't recall it's name though, sorry). Anyway, I'm currently being weaned down very slowly, in hopes of bringing my kidneys back to working healthily.

The Prazosin did work well on controlling my nightmares though. I can recall nights where I'd forgotten to take my meds & having a horrible time. Maybe I'm past that right now??

Best wishes to you!