Get effective relief from allergy symptoms caused by ragweed, tree pollen, dust mites, pet dander, hay fever and other upper respiratory allergies with easy-to-take Zyrtec Allergy Relief Dissolve Tablets in a citrus flavor. This prescription-strength allergy medicine starts working hard at hour 1 and works twice as hard when you take it again the next day. From the #1 allergist-recommended brand among OTC oral antihistamines, this allergy medicine contains 10 milligrams of cetirizine hydrochloride in each tablet and helps treat your allergy symptoms caused by both indoor and outdoor allergies, including runny nose, sneezing, and itchy, watery eyes, nose and throat. Available in a citrus flavor, one dose of Zyrtec allergy relief dissolve tablets provides effective relief for a full 24 hours and is suitable for those ages 6 and older. Zyrtec provides fast* relief that starts at hour one from symptoms that can be triggered by over 200 different allergens. *Starts working hard at hour 1