Penegra 100 mg is a prescription medicine used to treat erectile dysfunction (ED) in adult men. It contains sildenafil citrate 100 mg, which helps improve blood flow to the penis during sexual stimulation. Penegra belongs to a group of medicines called PDE-5 inhibitors. It relaxes blood vessels in the penis so more blood can flow in during sexual arousal, helping achieve and maintain a firm erection. It does not increase sexual desire and works only with stimulation.
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