Penegra 50 mg is a medication used to treat erectile dysfunction (ED) in men. It contains Sildenafil Citrate as its active ingredient, which is the same ingredient found in Viagra. Sildenafil works by increasing blood flow to the ****, helping men achieve and maintain an erection when ****ually aroused. Sildenafil Citrate is a PDE5 inhibitor (phosphodiesterase type 5 inhibitor). It works by blocking the enzyme PDE5, which normally restricts blood flow to the ****. By inhibiting PDE5, Sildenafil helps relax the blood vessels in the **** and increases blood flow during ****ual stimulation, leading to an erection.

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