Erectile dysfunction and other male sexual health problems can be treated with Vidalista (ED). The inability to get and maintain a firm erection is a symptom of sexual dysfunction or ED in men. Tadalafil 20mg, the active ingredient in buy vidalista 20, controls the PDE5 enzyme in the penis, thereby increasing blood flow to the area. An erection is achieved when a man’s penis receives more blood than usual. Erectile dysfunction is caused by blood not reaching the nerves in the penis.