Penegra 100 mg is a medication used to treat erectile dysfunction (ED) in men. It contains sildenafil citrate, which helps increase blood flow to the penis during sexual stimulation. When prescribed appropriately, it can help men achieve and maintain an erection. Penegra 100 mg may help manage erectile dysfunction, but a lower dose may be sufficient and better tolerated. Consult a healthcare professional before starting treatment, and purchase medicines from licensed pharmacies to reduce the risk of counterfeit products.