Tadarise 20 is a medication used to treat erectile dysfunction (ED) in men. It contains 20 mg of Tadalafil, the same active ingredient found in the brand-name drug Cialis. Tadalafil, the active ingredient in Tadarise 20, is a PDE5 inhibitor. It works by relaxing the blood vessels in the penis, increasing blood flow during sexual stimulation. This helps men achieve and maintain a firm erection....