Zhewitra 40 mg typically contains vardenafil, which is a phosphodiesterase type 5 (PDE5) inhibitor used to treat erectile dysfunction (ED) in men. Vardenafil works by increasing blood flow to the penis during sexual stimulation, aiding in the achievement and maintenance of an erection. Zhewitra 40 mg is prescribed to men who experience difficulties in achieving or maintaining an erection sufficient for sexual activity.

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