Sitagliptine fosifate ni dipeptidyl peptidase Ⅳ (DDP-4) inhibitor icyiciro cy’ibiyobyabwenge cyakozwe n’isosiyete yo mu Budage Merck kandi cyabanje kubona icyemezo cy’ikigo cy’Amerika gishinzwe ibiryo n’ibiyobyabwenge cyo kuvura diyabete yo mu bwoko bwa 2, ni imiti mishya ya antidiabete, ishobora guteza imbere umubiri wacyo ubushobozi bwo kugabanya umuvuduko mwinshi wamaraso glucose, hamwe no kwiyongera mubisanzwe incretine ibaho muguhagarika ibikorwa byiyi misemburo, harimo urwego rwa glucagon imeze nka peptide 1 na glucose iterwa na glucose insuline, bityo bigatuma pancreas iteza imbere insuline kandi igahagarika glucose umusaruro mu mwijima, kandi amaherezo ugabanya ingaruka zamavuriro yibitekerezo bya glucose.