Januvia is indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes melitus.Important limitations of use:Januvia 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.Januvia 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 Januvia.