Tadarise 20 mg can also be used to relieve symptoms of BPH, such as difficulty urinating, weak urine flow, or the feeling that the bladder isn't completely empty. By relaxing the muscles in the prostate and bladder, Tadalafil improves urine flow and reduces the need to urinate frequently. Although Tadarise 20 mg is primarily used for erectile dysfunction and BPH, Tadalafil is also used to treat PAH, a condition characterized by high blood pressure in the lungs. By relaxing blood vessels in the lungs, it helps lower blood pressure and improves exercise capacity in people with PAH. Tadarise 20 mg is usually taken 30 minutes to 1 hour before sexual activity. It can be taken with or without food, but a heavy meal may delay its onset of action. It should not be taken more than once a day.