Zyrtec 24 Hour Cetirizine 10 mg Tablets, OTC Antihistamine

Zyrtec contains cetirizine HCl 10 mg, an OTC antihistamine that temporarily relieves runny nose, sneezing, itchy, watery eyes, and itchy nose or throat due to hay fever or other upper respiratory allergies. Over-the-counter (OTC) medicine; no prescription required. Use only as directed and read the Drug Facts label before use.