Vilitra is a very popular and promising medication employed in the successful treatment of erectile dysfunction. This medicine improves the blood circulation towards male genitalia leading to hard and sturdy erection required for that magnificent lovemaking you might not have practiced before. This medicine contains Vardenafil as the main functional constituent. Vardenafil is a PDE-5 inhibitor that blocks the breakdown of cGMP by blocking the action of the PDE-5 enzyme.