Hey guys, just looking for some info about using phenergan. I've been prescribed it for my sinus symptoms to try and get me off nurofen plus for a while (I have nausea and mild constipation, possibly from nurofen plus). I took one 10mg tablet at 7pm last night, seemed to have no effect and then suddenly I just couldn't stay awake from 8pm. I slept pretty well, but couldn't stay awake the next morning. I got up at 9am, but dosed on and off until 12.30. I know phenergan makes you drowsy, but is that the normal amount of drowsiness it causes from just one 10mg tablet? Will my body get used to it and it not affect me quite as bad, or should I just give up before I waste days sleeping for half the day? The drowsiness I felt was comparable to a severe crash from CFS, where I can pass out from exhaustion even if there is an insane amount of noise and commotion going on nearby. The doctor also suggested polaramine (I think, hard to read his writing). Is this perhaps a better option? I haven't researched it yet. Thanks so much for any input about your experiences or knowledge. I'm so exasperated over my constant head symptoms/sinus and nausea on top of my CFS and POTS, it's all just hard to figure out.