Share this entry
diphenhydramine Syllabification: di·phen·hy·dra·mine
Pronunciation: /ˌdīfenˈhīdrəmēn/

Definition of diphenhydramine in English:

noun

Medicine
An antihistamine compound used for the symptomatic relief of allergies.
  • A synthetic amine, usually used as a hydrochloride salt; chemical formula: C17H21NO
Example sentences
  • Take an antihistamine containing diphenhydramine (Benadryl, Tylenol Severe Allergy) or chlorpheniramine maleate (Chlor-Trimeton, Teldrin).
  • Amitriptyline, diazepam and diphenhydramine (in Tylenol PM) are considered risky for older individuals.
  • The sedating antihistamine diphenhydramine is found in Benadryl, Tylenol PM and Sominex.

Origin

1940s: from diphen- (denoting the presence of two phenyl groups) + hydr- + amine.

Definition of diphenhydramine in:
Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources