Vidalista Black 80 mg is a higher-dose formulation of Vidalista, containing Tadalafil as the active ingredient. Tadalafil is used to treat erectile dysfunction (ED), and Vidalista Black 80 mg offers a stronger dosage compared to the regular Vidalista variants. By blocking PDE5, Tadalafil helps to relax the blood vessels in the penis, allowing for increased blood flow during sexual activity. This leads to an erection when sexually stimulated.