Popular male impotence medication Vidalista 20 Mg has the active ingredient Tadalafil as its main ingredient. It contains 20 mg of Tadalafil, a PDE-5 Inhibitor that increases male sexual desire. This impotence medication is also known as Generic Cialis because it contains Tadalafil. Male impotence, often known as Erectile Dysfunction (ED), affects millions of men worldwide. Even if it cannot be cured completely, you can manage its symptoms and continue having sex as usual.