Monotherapy as an adjunct to diet & exercise to improve glycemic control in patients w/ type 2 DM. Patients w/ type 2 DM to improve glycemic control in combination w/ metformin, sulfonylurea or PPARγ agonist (eg, thiazolidinediones) when monotherapy, w/ diet & exercise, does not provide adequate glycemic control. Patients w/ type 2 DM to improve glycemic control in combination w/ metformin & sulfonylurea when dual therapy w/ these agents, w/ diet & exercise, does not provide adequate glycemic control. Add-on to insulin (w/ or w/o metformin) when diet & exercise plus stable insulin dose do not provide adequate glycemic control.