Cenforce D is a prescription medication used to treat erectile dysfunction (ED) and premature ejaculation (PE) in adult men. It is a combination drug that contains sildenafil citrate and dapoxetine. Sildenafil is a PDE5 inhibitor that increases blood flow to the penis during sexual stimulation, helping achieve and maintain an erection. Dapoxetine is a selective serotonin reuptake inhibitor (SSRI) that helps delay ejaculation by improving control over climax. Because of this dual action, Cenforce D is designed for men who experience both ED and PE.