(2R,4R)-Teneligliptin-d8 is the isotope labelled analog of (2R,4R)-Teneligliptin (T018320); a stereoisomer of Teneligliptin (T018300, HBr) which is a dipeptidyl peptidase-4 (DPP-4) inhibitor that is used to treat type 2 diabetes. It is eliminated via excretion and has a half-life of 24.2 hours in the human body.