Cenforce 100mg is an adjunct to the treatment of impotence in men. It stimulates blood flow to the penis and helps a man achieve and maintain an erection. This drug is a PDE5 inhibitor. According to research, PDE 5 inhibitors have been found to improve erectile dysfunction in men. You can take this pill half an hour to an hour before sex on an empty stomach or after a meal. Once you are sexually aroused, this pill will help you achieve an erection.