Maybe: Diphenhydramine is in over the counter sleep meds. It is also known as benadryl, (diphenhydramine) a common antihistamine with a side effect of drowsiness. Sometimes there is an opposite effect, especially with young childen, elderly, or if too much is taken, and you don't sleep.
Answered 12/31/2020
5.9k views
Quite Possible: Sleepiness is a common side effect and overdose symptom.
Answered 9/9/2017
554 views
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A doctor has provided 1 answer
A doctor has provided 1 answer
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