Gemigliptin (Zemiglo, LC15-0444) is a potent, selective and long-acting dipeptidyl peptidase 4 (DPP 4) inhibitor with a Ki of 7.25 nM. Gemigliptin shows at least >23,000-fold selectivity for DPP-4 over various proteases and peptidases, including DPP-8, DPP-9, and fibroblast activation protein (FAP)-α.