Definition of diphenhydramine
: an antihistamine C17H21NO used especially in the form of its hydrochloride
Recent Examples of diphenhydramine from the Web
The Jefferson Parish coroner's office determined Joseph died of acute schizophrenic psychosis exacerbated by an unusually high level of the antihistamine diphenhydramine -- also known by the brand name Benadryl -- in his system.
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First Known Use of diphenhydramine
Learn More about diphenhydramine
Britannica.com: Encyclopedia article about diphenhydramine
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