ACTIVE INGREDIENT: This Amazon Basic Care product contains levocetirizine dihydrochloride, an antihistamine which compares to the active ingredient in XYZAL Allergy 24HR ALL DAY ALLERGY RELIEF: This allergy medication provides 24 hour symptom relief from indoor and outdoor allergens WORKS FAST: Clinically proven relief in 60 minutes INDOOR AND OUTDOOR ALLERGENS: Provides all day allergy relief by temporarily relieving symptoms due to hay fever or other upper respiratory allergies: sneezing, runny nose, itchy nose or throat and itchy, watery eyes GLUTEN FREE: Amazon Basic Care Levocetirizine Dihydrochloride Tablets, 5 mg, are gluten free