Vidalista Black 80 contains the active component Tadalafil.It is one of the most often prescribed drugs, and it is only available with a doctor's prescription.Vidalista 80 Black is used to treat male sexual diseases such as erectile dysfunction.ED is a sexual problem in which men are unable to obtain or maintain a firm erection.Erectile Dysfunction, often known as impotence, can occur in men of any age.Vidalista Black should be taken exactly as prescribed by your doctor.Tadalafil (Vidalista) has the greatest effect duration of any PDE5 inhibitor, lasting up to 36 hours.Sildenafil (Viagra) has a half-life of around four hours.Other Dosages:Vidalista 2.5 | Vidalista 5 mg | Vidalista 10