Comment by Sohcahtoa82

Yeah, my wife and I were on a cruise once that was going through some VERY rough waters, and the swaying of the ship was making us sick. We took dimenhydrinate and it put us to sleep right after breakfast and we slept until like 5 PM. Lost an entire day.

There's a non-drowsy anti-sickness formula out now called meclizine, but I found it to be less effective.