Penegra 25 MG Tablet contains Sildenafil. It is better known as the blue pill. It is an effective medicine used for the treatment of erectile dysfunction (ED) in men. Erectile dysfunction is a condition where a man is unable to achieve and/or maintain an erection adequate for sexual intercourse.Penegra 25 MG Tablet is not recommended for people with heart and kidney problems, Avoid taking this tablet if you have a recent history of stroke or angina.