Buy Super P Force Tablets is a combination drug used to treat premature ejaculation and erectile dysfunction in men. Dapoxetine slows down excessive blood flow that prevents ejaculation, whereas sildenafil citrate increases blood flow to the penis. Dapoxetine is a member of the class of medications known as serotonin-norepinephrine reuptake inhibitors, or SNRIs, which work to increase blood flow by affecting neurotransmitters in the brain.