Reactine Extra Strength Antihistamine Tablets offer fast, long-lasting relief from indoor and outdoor allergy symptoms. Each dose contains 10 milligrams of cetirizine hydrochloride for allergy relief that provides fast relief and lasts 24 hours. Fast, 24 hour relief of sneezing; stuffiness; itchy, watery eyes; hives; runny nose; itchy nose and throat; and allergic skin itch. Adults and children 12 years of age and over should take one tablet every 24 hours, anytime of day. Adults 65 years of age and over should use Regular Strength Reactine 5 mg Tablets or consult a doctor. This package contains 84 tablets.