Zenegra 50 mg Tablet contains Sildenafil. It is healthier known as the blue pill. It is an real medicine used for the treatment of erectile dysfunction (ED) in men. Erectile dysfunction is a disorder where a man is unable to achieve and/or maintain an assembly adequate for sexual intercourse. This happens because of diminished blood flow due to physical injuries and certain medical conditions, or due to specific psychological settings such as anxiety, stress, misery, etc.