Diphenhydramine is the active ingredient in Benadryl and the one that helps induce drowsiness and sleepiness. It is classified as a first-generation H1 antihistamine and is primarily used for the ...

Related: Causes of Chronic Insomnia The active ingredient of Benadryl is diphenhydramine, an antihistamine medication with ...

Benadryl contains the active ingredient diphenhydramine. It is a first-generation antihistamine. First-generation ...

ACTIVE INGREDIENT: The active ingredient in Amazon Basic Care All Day Allergy is cetirizine hydrochloride, an antihistamine approved for the treatment of both indoor and outdoor allergy symptoms ...