Tadarise is actively composed of Tadalafil drug, which is a PDE5 enzyme inhibitor. The primary mechanism of Tadarise is to boost blood flow to the male organ, which takes place by inhibiting the PDE5 enzyme. Inhibition stops the degradation of a vasodilator called cGMP. As the level of cGMP enhances in the body, it results in the relaxation of smooth muscles, and nitric oxide helps dilate the arteries. This whole reaction results in the accumulation of blood in the penile organ and makes it erect. Note that sexual stimulation is essential to attain an erection.