Adjunct to diet & exercise to improve glycemic control in patients w/ type 2 DM as monotherapy, in combination w/ metformin, sulfonylurea, thiazolidinedione, or insulin, or in triple combination w/ sulfonylurea & metformin, when diet, exercise & single agent or dual therapy do not provide adequate glycemic control. Initial combination therapy w/ metformin in patients w/ type 2 DM whose diabetes is not adequately controlled by diet & exercise alone.