It contains 200mg of Sildenafil, the active ingredient in Viagra, and is effective in treating erectile dysfunction by improving blood flow to the penis. This prescription-only medicine is used to help men achieve spontaneity faster than usual, experience naturally stiffer erections, and last … Cenforce 100 mg is used for treating Erectile Dysfunction. It contains Sildenafil which works by improving the blood flow to help men maintain an erection. Cenforce 200mg works by increasing blood flow to your junk. It kind of relaxes the blood vessels down there, which makes it easier for blood to flow in and get …