Vidalista 20 contains Tadalafil which makes it a PDE5 inhibitor drug. Vidalista 20 is a commonly prescribed ED pill by doctors to treat erectile dysfunction in men. While both drugs offer about the same quality of erection, slightly more men achieved a satisfactory erection with sildenafil, according to a study.

Tadalafil usually starts to work within 30 to 60 minutes. If you're taking it for erectile dysfunction, it's triggered by sexual stimulation, so you need to be aroused for it to work. You can find more information about ED by clicking here