List of NDC products with proprietary name steglatro. Ertugliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes. Controlling high blood sugar helps prevent kidney damage, blindness, nerve problems, loss of limbs, and sexual function problems. Proper control of diabetes may also lessen your risk of a heart attack or stroke. Ertugliflozin works by increasing the removal of sugar by your kidneys.