Tadalista 20 mg ( Tadalafil 20mg) belongs to a group of medicines called phosphodiesterase type 5 inhibitors. It works by helping to relax the blood vessels in your penis, allowing blood to flow into your penis when you get sexually excited. Tadalfil tablet being the parent works by improving blood flow to the penile and relieving the arterial clogging. This makes it easier for the man to erect in presence of complete sexual stimulation. This drug is said to consist of Tadalafil, an agent that is a part of most of the ED medicines including the famous Viagra. Hence, Tadalafil the actions of Viagra and increases the flow of blood towards the penis, resulting in long erections.