Vidalista Black 80 mg is a high-dose formulation of Tadalafil, the same active ingredient found in other Vidalista products used to treat erectile dysfunction (ED). However, Vidalista Black 80 mg is a stronger dose compared to the more common 20 mg or 40 mg variants. Tadalafil, the active ingredient in Vidalista Black 80, works by inhibiting the enzyme PDE5 (phosphodiesterase type 5), which leads to the relaxation of smooth muscle tissue in the blood vessels of the penis. This improves blood flow, making it easier for a man to achieve and maintain an erection when sexually aroused. https://www.genericday.com/vidalista-black-80-mg.html