Table of Contents
Synonyms
1. diphenhydramine
noun. antihistamine (trade name Benadryl) used to treat allergic reactions involving the nasal passages (hay fever) and also to treat motion sickness.
Synonyms
Sentences with diphenhydramine
1. Noun, singular or mass
If you have never taken diphenhydramine before, it's probably best to take your first dose at night, just in case it makes you sleepy too.
2. Verb, base form
As a first-generation antihistamine, diphenhydramine usually causes mild sedation, the University of Iowa Hospitals and Clinics says 45.
