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Zhewitra is a medication used to treat erectile dysfunction (ED). Its active ingredient is vardenafil, which is a phosphodiesterase type 5 (PDE5) inhibitor. Vardenafil helps increase blood flow to the **** by inhibiting the PDE5 enzyme. This enzyme typically breaks down cyclic guanosine monophosphate (cGMP), which is responsible for relaxing smooth muscles and increasing blood flow. By inhibiting PDE5, Zhewitra helps maintain higher levels of cGMP, facilitating an erection in response to ****ual stimulation.

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