There is a cilostazol tablet is in a class of medications called platelet-aggregation inhibitors (antiplatelet medications). It works by improving blood flow to the legs. The cilostazol is a vasodilator that works by relaxing the muscles in your blood vessels to help them dilate (widen). Cilostazol can increase blood flow and the amount of oxygen that gets to the muscles. Cilostazol is an antiplatelet drug and a vasodilator. The cilostazol tablet is made for use in various medical ailments.