A lot: Diphenhydramine has a very low toxicity so you would need a very large dose. It is sleep inducing and is used for this side effect commonly. But why push this point unless you have some other motive.
Answered 9/9/2017
4.6k views
Please call 911: if you are seriously considering overdosing on diphenhydramine.
Answered 9/9/2017
554 views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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