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.
A generic drug is made with the same active ingredients and is available in thesame strength and dosage form as the equivalent brand-name product. Generic drugs produce the same effects in the body as the brand-name drugs, because both contain the identical active ingredients...