It s a non-insulin therapy that lower blood sugar and a1c.it is indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. it s not used as the first medication to treat diabetes.it s not for people with type 1 diabetes or people with diabetic ketoacidosis.it s not for wight loss, but may help you lose some weight.warning: risk of thyroid c-cell tumorsdose: once daily, any time.