Cenforce D is commonly marketed as a combination medicine for men experiencing erectile dysfunction (ED) and premature ejaculation (PE). Products sold under this name commonly contain sildenafil citrate and dapoxetine, although the exact formulation and strengths should always be confirmed on the packaging. Sildenafil is a phosphodiesterase type-5 (PDE5) inhibitor that improves blood flow to the penis during sexual stimulation, helping achieve and maintain an erection. Dapoxetine is a short-acting selective serotonin reuptake inhibitor (SSRI) that may help delay ejaculation in appropriate men with premature ejaculation.