LY127210 (free base) is a potent vasodilator with antihypertensive effects that reduces pressure in chloralose-anesthetized spontaneously hypertensive rats primarily by direct arteriolar dilation and to a lesser extent by decreasing cardiac output. LY127210 (free base) reduces blood pressure, heart rate and left ventricular end-diastolic pressure in hypertensive rats by reducing vascular resistance[1].