Xyzal (levocetirizine) is an antihistamine available both over the counter and by prescription, used to treat seasonal allergies and hives. The FDA-approved generic version is equally effective as the brand-name drug, with the key difference being inactive ingredients, while offering a more affordable option.
Dr. Maaz Jalil, allergist and immunologist with ENT & Allergy Associates in the Medford and West Deptford offices, provided expert insight for this article.