Dosing for children may be different, too, so it's important to read the label for dosage guidance. As an antihistamine, ...

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 ...