Originally Posted by mush
My only concern with Benadryl is it tends to dry you out, especially the nose and mouth; this means extra water and limited alcohol for most people.
Good point, mush. After all, Benadryl is an antihistamine, so I guess if it's doing its *real* job, it dries you out. But given the low humidity on a plane, it could really dry you out. Although I originally suggested it, I don't actually take it on planes so I didn't think about that potential side effect.