SN instructed patient about drug Cilostazol, trade name: Pletal. Is a medication for the treatment of intermittent claudication (pain in your calves when walking), a condition caused by narrowing of the arteries that supply the legs with blood. Patients with intermittent claudication develop pain when they walk because not enough oxygen-containing blood reaches the active leg muscles. Cilostazol reduces the pain of intermittent claudication by dilating the arteries, thereby improving the flow of blood and oxygen to the legs. It also reduces the ability of blood to clot. Cilostazol enables patients with intermittent claudication to walk longer and faster before developing pain. Cilostazol is a quinolinone-derivative medication that inhibits platelet aggregation and is a direct arterial vasodilator. Its main effects are dilation of the arteries supplying blood to the legs and decreasing platelet coagulation. Do not stop taking this medication without talking to your doctor.