Vidalista 20 is a brand of tadalafil 20 mg, used for erectile dysfunction (ED). Tadalafil is a PDE5 inhibitor, similar to sildenafil, but it has a longer duration of action. Tadalafil relaxes smooth muscles in the blood vessels of the penis, increasing blood flow during sexual stimulation. https://www.genericday.com/vidalista-20-mg.html