The next poster, Viperdoc, is more knowledgable here than I am--but all
(I believe) over-the-counter sleep aids are antihistamines. The "first
generation" antihistamines such as diphenhydramine (Benadryl) are quite
sedating, and those drugs make a feature out of that bug.

David

Peter R. wrote:
David Kazdan wrote:


I have seen NTSB and military accident reports list antidepressant and
antihistamine levels.


Do sleep aids contain antidepressant or antihistamines? I don't take them
so I legitimately don't know.