Tadalista contains Tadalafil as the active ingredient. This drug comes in handy for men helping men to treat erectile dysfunction and impotence problems. Which helps increase blood flow to the penis, which helps a man to be stiff and to stand up for a long time. You should take this medicine 30 minutes before sexual intercourse. The effect lasts for 24 hours. Therefore, it is important to consult your doctor while taking this medicine.