Zenegra 100 mg is a medication used to treat erectile dysfunction (ED) in men. It contains Sildenafil citrate, a phosphodiesterase type 5 (PDE5) inhibitor that helps improve blood flow to the penis, enabling men to achieve and maintain an erection during sexual stimulation. Sildenafil blocks the PDE5 enzyme, which results in the relaxation of blood vessels in the penis. This increases blood flow during sexual arousal, helping produce a firm and lasting erection.
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