Manforce 100 is made for a medication for erectile dysfunction. Manforce 100mg enhances blood flow to the penis, providing more blood flow into the penis which occurs naturally when a man is physically aroused. With higher blood flowing in and less flowing out, the arteries in the penis expand, resulting in an erection. It comes in tablet form and takes it by mouth, and you can take an injection through a vein. You may take 1 hour before you plan to have sex.