Tadacip 20 made by Cipla is a medication used for treating male impotence. This is an alternative for well-known Cialis brand.Tadacip 20 mg is a phosphodiesterase (PDE-5) inhibitor. It acts in erectile dysfunction by increasing blood flow to the penis by loosening the muscles in penile blood vessels. It works in pulmonary hypertension by relaxing the blood vessels in the lungs to allow blood to flow more easily.