Adjunct to diet & exercise to improve glycaemic control in patients w/ type 2 DM as monotherapy or in combination w/ metformin, sulfonylurea, thiazolidinedione, when diet & exercise do not result in adequate glycemic control; on combination w/ sulfonylurea & metformin when diet & exercise plus dual therapy w/ these agents 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.