Tadalista Professional is a medication used to treat erectile dysfunction (ED) in men. It contains Tadalafil, a PDE5 inhibitor that helps improve blood flow to the penis by relaxing the blood vessels. Erections happen when blood fills the penis. This occurs because the vessels bringing blood in widen, while those taking blood away narrow, helping maintain the erection. This medicine only works when you are sexually aroused. It won’t cause an erection without sexual stimulation.