Men with impotence and erectile dysfunction can be treated with Cenforce 200. Sildenafil citrate, an ingredient in this medication, aids in boosting blood flow to the panels. Men only, over the age of 18, may use this medication. To ensure you enjoy fun time with your partner, take this medication half an hour before sexual activity. This medication takes four to six hours to take effect. For women and children, do not use this medication. You can take this medication either way—before or after food. You can take this medication as directed by your physician.