If you are taking the over-the-counter product to self-treat, read and follow all directions on the product package before taking this medication. If you have any questions, consult your ...

Xyzal (levocetirizine) and Zyrtec (cetirizine) are antihistamines taken to relieve allergy symptoms such as sneezing, runny nose, itchy eyes, and hives. Although Xyzal and Zyrtec work similarly, there ...