Zhewitra 20 mg is a medication used to treat erectile dysfunction (ED) in men. The active ingredient in Zhewitra 20 mg is vardenafil, which is a phosphodiesterase type 5 (PDE5) inhibitor. Vardenafil works by increasing blood flow to the **** during ****ual stimulation, allowing men to achieve and maintain an erection.Vardenafil inhibits the PDE5 enzyme, leading to increased levels of cyclic guanosine monophosphate (cGMP). This, in turn, relaxes the smooth muscles in the ****, allowing for improved blood flow and the ability to achieve an erection.
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