AMPK activator 4 is a potent and selective AMPK activator that does not inhibit mitochondrial complex I. AMPK activator 4 selectively activates AMPK in muscle tissue and dose-dependently improves glucose tolerance in normal mice, significantly reduces fasting glucose levels and improves insulin resistance in db/db diabetic mice.AMPK activator 4 has hypoglycemic effects. activator 4 has hypoglycemic effects.