Generic Allegra-D extended-release tablets is an antihistamine and decongestant combination. The antihistamine works by blocking the effects of histamine, which cause allergy symptoms. The decongestant works by stimulating the body's natural response and reducing the swelling in the blood vessels that supply the mucous membrane, thereby decreasing nasal congestion.
Generic Tavist is used for preventing or treating symptoms of hay fever and other upper respiratory allergies or the common cold, such as runny nose, sneezing, itching of the nose and throat, and itchy, watery eyes, and relieving cough.
Generic Zyrtec-D Extended Release is an antihistamine and decongestant combination which provides relief of seasonal and perennial allergy symptoms such as watery eyes, runny nose, itching eyes, sneezing, and stuffy nose (nasal congestion).