Vidalista 40 mg is a prescription medication used primarily for the treatment of erectile dysfunction (ED) in men. It contains tadalafil, a phosphodiesterase type 5 (PDE5) inhibitor, which works by increasing blood flow to the penis during sexual stimulation, thereby helping to achieve and maintain a firm erection. Often referred to as the generic version of Cialis, Vidalista 40 mg has a long duration of action—up to 36 hours—which allows for greater spontaneity in sexual activity and has earned it the nickname “the weekend pill.” It is typically taken as needed, about 30 to 60 minutes before intercourse, with or without food, though high-fat meals may delay its onset.