What is Vidalista 20 Mg? It contains the active ingredient tadalafil, which belongs to a class of medicines called phosphodiesterase type 5 inhibitors. Vidalista 20 mg works by increasing blood flow to the p*nis, which helps men get and keep an erection during s*xual activity. When getting an erection is a problem, you probably have erectile dysfunction. Vidalista 20mg is not certain whether it...