Men's erectile dysfunction and impotence can be effectively treated with Cenforce 150 mg. Take this medication half an hour prior to sexual activity so that you can enjoy quality time with your partner. Sildenafil, an ingredient in this medication, aids in giving men a powerful erection during sexual activity. Drink water when taking this medication. Never chew or break this medication. This medication can be taken either before or after food. This medication takes four to six hours to take effect. Follow your doctor's advice when taking this medication.