Vidalista 80 is a medication used to treat erectile dysfunction (ED) in men. It contains Tadalafil, which is the same active ingredient found in Cialis. Tadalafil belongs to a class of drugs called PDE5 inhibitors. These drugs work by relaxing the blood vessels in the penis, allowing for increased blood flow during sexual arousal, thereby helping men achieve and maintain an erection. Vidalista 80 is typically taken once a day or before sexual activity, depending on the advice of your doctor.