Zhewitra 20 mg is an oral medication used to treat erectile dysfunction (ED) in men. It contains the active ingredient Vardenafil, which is a phosphodiesterase type 5 (PDE5) inhibitor. Zhewitra works by increasing blood flow to the penis, helping to achieve and maintain an erection when sexual stimulation occurs. Vardenafil inhibits the PDE5 enzyme, which is responsible for breaking down cGMP (cyclic guanosine monophosphate), a chemical that relaxes the blood vessels in the penis.
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