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 ...

Diphenhydramine is the active ingredient in Benadryl and the one ... For use in the treatment of allergies, Benadryl is recommended for adults and children over the age of six.

For small dogs, you may consider using the children’s formula, which has less of the active ingredient ... that Benadryl is ...

Last month, the U.S. Food and Drug Administration proposed removing phenylephrine -- an active ingredient in hundreds of over-the-counter medications, including some versions of Tylenol, Benadryl ...