Zudena 100 mg is a medication used to treat erectile dysfunction (ED) in men. It contains Udenafil, a phosphodiesterase type 5 (PDE5) inhibitor, which works by increasing blood flow to the penis, helping men achieve and maintain an erection when sexually aroused. It is similar to other PDE5 inhibitors, such as Sildenafil (Viagra) and Tadalafil (Cialis), but with some differences in its pharmacokinetics and duration of action.

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