Zhewitra 40 mg is a medication used to treat erectile dysfunction (ED) in men. It contains Vardenafil as its active ingredient. Vardenafil is a phosphodiesterase type 5 (PDE5) inhibitor, and it works by increasing blood flow to the penis during sexual stimulation, facilitating the achievement and maintenance of an erection. Vardenafil is effective in improving erectile function by increasing blood flow to the penis.

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