Penegra 50 mg contains sildenafil, a phosphodiesterase type 5 (PDE5) inhibitor used to treat erectile dysfunction (ED) in adult men. It works by increasing blood flow to the penis during sexual stimulation, helping achieve and maintain an erection. Sildenafil does not increase sexual desire and does not normally cause an erection without sexual stimulation. For many adults, 50 mg is a commonly recommended starting dose, although the appropriate dose depends on individual health, age, other medicines, and response to treatment. It should be used according to a healthcare professional’s instructions.

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