Vidalista 80 Black is a generic form of Cialis that contains a dose of Tadalafil 80 mg, that is the main ingredient. Tadalafil works as an inhibitor of phosphodiesterase type 5enzyme, which assists in increasing the flow of blood to certain areas within the human body including the penis, which is utilized to treat the erectile dysfunction. It's important to keep in mind that medicines such as Vidalista 80 Black should be administered in the direction of a skilled doctor.