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Zhewitra 20 mg is a prescription medicine used to treat erectile dysfunction (ED) in men. Its active ingredient is Vardenafil, which helps improve blood flow to the penis during sexual stimulation, making it easier to achieve and maintain an erection. Vardenafil blocks the enzyme PDE5. This increases levels of cGMP, a chemical that relaxes smooth muscles in penile blood vessels. As a result, blood flow improves when a man is sexually aroused, supporting stronger erections.
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