I have been prescribed promethazine hydrochloride 25mg for my sleep problems. I have great difficulty going to sleep and staying asleep. I have previously taken zopiclone 3.75mg tablets which work well although I still wake up in the early hours. They leave me feeling spaced out and drowsy in the morning. I know this an older type of sedative/anti hystamine and I was wondering whether anyone had had any success with this for sleep problems? EJ.