The present invention relates to pharmaceutical composition, it includes DPP-4 inhibitor medicaments to combine with the fixed dosage of composition of medicine, preparation method, and its purposes of the certain diseases for the treatment of.本發明涉及藥物組合物,其包含DPP-4抑制劑藥物與組合藥物的固定劑量組合,其製備方法,及其治療某些疾病的用途。