Penegra 50 mg is a medication used to treat erectile dysfunction (ED) in men. It contains Sildenafil Citrate, the same active ingredient found in the brand Viagra. Penegra 50 mg works by increasing blood flow to the penis, helping men with ED achieve and maintain an erection when sexually aroused. Sildenafil Citrate, the active ingredient, is a PDE5 inhibitor. This means it blocks the enzyme phosphodiesterase type 5 (PDE5), which is responsible for restricting blood flow to the penis.
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