Cetirizine (Zyrtec) is a “newer generation” antihistamine with fewer side effects than older antihistamines, like diphenhydramine (Benadryl). Even so, some people will experience drowsiness ...

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 ...

M.D. ANSWER: Cetirizine (Zyrtec) is a “newer generation” antihistamine with fewer side effects than older antihistamines, like diphenhydramine (Benadryl). Even so, some people will experience ...