Neutrogena, Zyrtec Allergy Cetirizine HCI, 10 mg, 90 TabsProduct Description Zyrtec Allergy is an over the counter antihistamine that provides relief from allergy symptoms such as sneezing, runny nose, itchy or watery eyes, and itching of the throat or nose. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms. The formula is non drowsy for most users, allowing for symptom relief without the sedative effects often associated with similar medications. It comes