Zenegra 100 mg is a prescription medication used to treat erectile dysfunction (ED) in adult men. Its active ingredient is sildenafil citrate, a phosphodiesterase type 5 (PDE5) inhibitor that helps increase blood flow to the ****. By blocking PDE5, sildenafil prevents the breakdown of cGMP, a molecule that relaxes smooth muscles in the penile arteries. This allows more blood to enter the erectile tissue, producing a firmer erection when combined with ****ual stimulation. Zenegra 100 mg does not directly cause ****ual arousal or desire; it enhances the physiological response to arousal.
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