These powerful allergy pills provide up to 24 hours of temporary relief. Our tablets start working at hour 1 & work twice as hard when you retake them the following day. Prescription-strength medicine treats runny nose, sneezing, itchy, watery eyes, itchy nose & throat. Temporarily relieves common indoor and outdoor allergies. 500 Count Tablets. Compared to the active ingredient of Zyrtec. This powerful antihistamine contains 10 mg of cetirizine hydrochloride in each anti-allergy tablet. Temporarily provides relief of symptoms due to hay fever or other upper respiratory allergies: runny nose, sneezing, itching nose or throat, and itchy, watery eyes. ACTIVE INGREDIENT: Cetirizine hydrochloride 10 mg, an antihistamine approved for the treatment of both indoor and outdoor allergy symptoms Welmate 24 Hour Allergy Relief Tablets for potent relief of your worst allergy symptoms.