Zhewitra 20 mg is a medication that contains the active ingredient Vardenafil, which is used to treat erectile dysfunction (ED) in men. Vardenafil is a phosphodiesterase type 5 (PDE5) inhibitor, similar to Sildenafil (Viagra) and Tadalafil (Cialis), and it works by increasing blood flow to the penis when a man is sexually aroused.
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