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A member asked:
Will a diphenhydramine overdose make you fall asleep?
A doctor has provided 1 answer
Drowsiness normal : Diphenhydramine is an antihistamine that crosses into the brain and interferes with the normal message carrying chemicals. At normal or above normal doses it can cause drowsiness & it is used as the main component of otc sleep meds.An overdose may initially cause drowsiness & sleep but may also cause seizures.
Answered 6/25/2014
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