Take it as prescribed to get the most benefit. Cenforce D is used to treat sexual problems in men. Do not take longer or longer than necessary as it can be dangerous. In general, you should take the lowest dose that works, for the shortest possible time. This will help you perform your daily activities more easily and have a better, more active, quality of life. You can take this medicine before or after food. The effect of this medicine lasts for 4 to 6 hours. Take this medicine as per your doctor's advice.