The invention relates to antidiabetic medications which are suitable in the treatment or prevention of one or more conditions selected from type 1 diabetes mellitus, type 2 diabetes mellitus, impaired glucose tolerance and hyperglycemia, inter alia. In addition the present invention relates to methods for preventing or treating of metabolic disorders and related conditions. The medication is a mono treatment with a DPP-4 inhibitor <;preferably linagliptin>; or a combination treatment with a DPP-4 inhibitor and a second and/or third antidiabetic.