An adjunct to diet and exercise to improve glycemic control in adult patients with type 2 diabetes mellitus. Important limitations of use: should not be used in patients with type 1 diabetes or for the treatment of diabetic ketoacidosis, as it would not be effective in these settings. It has not been studied in patients with a history of pancreatitis. It is unknown whether patients with a history of pancreatitis are at increased risk for the development of pancreatitis while using the drug.