Cenforce 100mg is a medication used to treat erectile dysfunction and impotence in males. Sildenafil, a component in the medication, enables men to enjoy sex for longer. Take this medication half an hour before sexual activity. Use this medication just once every 24 hours. This medication can be used either before or after a meal. Consume water together with this medication. Never chew or break the medication. This medication takes four to six hours to take effect. As prescribed by your physician, you should take this medication.