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 ...

Second and third generation treatments such as cetirizine (hydrochloride), loratadine, fexofenadine and acrivastine are generally less likely to cause drowsiness, although cetirizine can cause ...

But which is right for you? And it matters, because although Zyrtec (the brand name for cetirizine) and Claritin (loratadine) ...