Reactine Extra Strength Allergy Relief Tablets provide fast relief from indoor and outdoor allergy symptoms for adults. Indoor allergens, such as mold, dust, and pet dander, can trigger allergy symptoms both at home and work. Since indoor allergies can occur year-round, they are often confused with colds. Recognizing and understanding your symptoms is crucial in managing allergies. When your immune system reacts to allergens, it releases chemicals like histamine, which causes most allergy symptoms. Antihistamines, like the one in Reactine, are your first line of defense. They work by blocking histamine receptors, helping to reduce symptoms such as itchy and watery eyes, runny nose, sneezing, itchy throat, and skin itch (like hives) caused by seasonal and perennial allergies. Each Reactine tablet contains 10 mg of cetirizine hydrochloride, providing fast, 24-hour relief. Always consult your doctor or pharmacist to ensure this product is suitable for you and read the label carefully.