Reactine Rapid Dissolve Extra Strength Tablets dissolve in seconds without water, eliminating the need to swallow a pill. These oral-dissolving tablets start to work on allergy symptoms quickly and provide long lasting relief for up to 24 hours. Reactine Rapid Dissolve provides relief of itchy, watery eyes, runny nose and sneezing, nasal congestion, itchy nose and throat and allergic skin itch and hives. Contains 10-milligrams cetirizine hydrochloride, an antihistamine. Allergy symptoms kick in when your immune system overreacts to substances called allergens. Indoor allergens, including mold, dust, and pet dander can cause allergy symptoms at home and at work. Since indoor allergies can be triggered any time of year, they can often be easily confused with a cold. Understanding and recognizing the symptoms is half the battle. Outdoor pollen from the spring, summer, and fall can be present inside your home too. Speak to your doctor or pharmacist. To be sure this product is right for you, always read and follow the label. Reactine Rapid Dissolve is available in a 24 tablet package.