Vilitra works by enhancing the body's natural response to sexual stimulation. When a man is aroused, the body produces nitric oxide, which in turn activates the enzyme guanylate cyclase, leading to an increase in cGMP levels. This causes the smooth muscles in the blood vessels of the penis to relax, allowing for increased blood flow. By inhibiting the PDE5 enzyme, Vilitra helps maintain higher levels of cGMP, which improves erectile function.
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