Tadalista 20 mg is a drug which helps men to attain and maintain an erection. It is used in the treatment of erectile dysfunction and benign prostatic hyperplasia (BPH). This drug is a phosphodiesterase 5 inhibitor. It works by boosting the level of cGMP in penile smooth muscle to increase blood flow and to produce an erection. Tadalista 20 mg is an erectile dysfunction medication that helps improve blood flow to the penis area. It is available in tablets and soft gel capsule form. It works by increasing blood flow to the penis area and relieving arterial clogging.