Cetirizine Tabs 10mg 100 Tablet Antihistamines - 2nd Generation Generic Zyrtec $5.95 Cetirizine is an antihistamine that reduces the natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose. It is used to treat cold or allergy symptoms such as sneezing, itching...