Male sexual dysfunction is treated with the cenforce 100mg pill. The active element in this medication, sildenafil, helps men achieve and maintain firm erections during sexual activity. Take this medication half an hour before sexual activity. This medication takes four to six hours to take effect. Take this medication with or without food. This medication can be taken with water, but avoid breaking or chewing the tablet. Only guys who are at least eighteen years old should use this medication. Follow your doctor's advice when taking this medication.