Zhewitra 10 mg works by inhibiting the enzyme phosphodiesterase type 5 (PDE5). PDE5 typically breaks down a compound called cyclic GMP, which is responsible for the relaxation of smooth muscles in the penile blood vessels, allowing more blood to flow into the penis. By blocking PDE5, Zhewitra enhances the effects of nitric oxide (released during sexual arousal), leading to better blood flow and a firm erection. Zhewitra 10 mg is effective for most men in improving erectile function.
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