To understand how Vilitra works, it's essential to first comprehend the natural process that leads to an erection. When a man becomes sexually aroused, the brain sends signals to the nervous system, which then triggers the release of nitric oxide (NO) in the blood vessels of the penis. Nitric oxide plays a critical role in the relaxation of smooth muscle cells within the blood vessels, allowing them to widen and increase blood flow to the penis. This increased blood flow leads to the engorgement of the erectile tissue, resulting in an erection.

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