Answers (1)
Dramamine (dimenhydrinate) is available over-the-counter and is considered very safe when used as directed.
http://www.drugs.com/mtm/dramamine.html
It is used primarily for motion sickness prevention, although it may cause drowsiness.
Products containing diphenhydramine (Unisom SleepGels, Simply Sleep, Sominex, Nytol) are more commonly used as sleep aids and are also available over-the-counter.
http://www.drugs.com/mtm/diphenhydramine.html

Parents be very aware that this is the new drug for kids today. They are taking anywhere from 3 or more tablets at a time and when they do, they get high and have halucinations.