What Is Cetirizine Hydrochloride?
Cetirizine hydrochloride is the active ingredient found in the allergy medication Zyrtec, which was once only available by prescription but is now available over the counter. Cetirizine is classified as an antihistamine. Antihistamines treat your seasonal allergy symptoms, like runny nose, sneezing, watery eyes and itchy throat. Generics are available at local drug and discount stores. You should always consult your pharmacist to see if generic cetirizine is appropriate for your allergies.