Home Healthcare Shoppe Q&AAnswer
Dec 01, 2025 - 08:26 AM
The primary active ingredient in Reactine Allergy Extra Strength is cetirizine hydrochloride (10 mg). This long-acting antihistamine provides effective 24-hour relief from allergy symptoms such as sneezing, runny nose, itchy, watery eyes, and itching of the throat or nose.
