Tadalafil is the active element in Tadalista 20 mg, which is used to treat erectile problems. It is a top-notch drug that addresses the issue organically without eventually leading to addiction. It is a PDE 5 inhibitor that increases blood flow to the penis, causing it to remain hard and erect longer than usual. You can enjoy more and longer moments with your spouse when the penis receives enough blood flow to be firm and erect for a longer period of time.