Due to its 36-hour effect it is also known as the weekend pill.

The active ____ __ ___ ingredient in CIALIS tablets is called tadalafil which belongs to a group of medicines called phosphodiesterase type 5 inhibitor. Following sexual stimulations, ____20MG CIALIS tadalafil works by helping the blood vessels in your penis to relax, ____ __ ___ allowing the flow of blood into your penis. The result of this causes improved erectile function. CIALIS is not going to help you if you do not have erectile dysfunction issue.