Tadalista 5 mg contains an active ingredient, Tadalafil, which is used to treat Erectile Dysfunction in men. Tadalista 5 Mg is a prescription based drug which may be available at any of the drugstores, leading online pharmacy stores, and medical supply stores. Tadalafil (PDE-5 inhibitor) is an active salt in Tadalista 5 Mg tablet which is increases the blood flow to the penis by relaxing the muscles in penile blood vessels hence, treating Erectile Dysfunctioning. It also treats pulmonary hypertension by relaxing the blood vessels in the lungs to allow blood to flow more easily.