Erectile dysfunction (ED) is a common type of male sexual dysfunction. Cenforce D is used to treat sexual problems in men such as impotence, erectile dysfunction, and premature ejaculation. It is when a man has trouble getting or keeping an erection. ED becomes more common as you get older. But it's not a natural part of aging. This drug is only taken by men over 18 years of age. You take this medicine 30 minutes before intercourse so that you can enjoy intercourse with your partner. You can also take this medicine before or after a meal. The effect of this drug lasts for 4 to 6 hours.