In Each Tablet Other Information: Store between 20 degrees to 25 degrees C (68 degrees to 77 degrees F). Contains no ingredient made from a gluten-containing grain (wheat, barley or rye). Keep outer carton for complete warnings and product information. Cetirizine HCI 10 mg antihistamine. Treats indoor & outdoor allergies. Original prescription strength. 24-hour Relief of: sneezing; runny nose; itchy watery eyes; itchy throat or nose. Compare to the active ingredients in Zyrtec (This product is not manufactured or distributed by McNeil Consumer Healthcare, distributor of Zyrtec). Trust Quality. Excellence. Questions or comments? Call 1-877-753-3935 Monday-Friday 9am-5pm EST.