Used in the management of type 2 diabetes mellitus, this compound functions as a dipeptidyl peptidase-4 (DPP-4) inhibitor. It helps increase insulin release and reduce glucagon levels in a glucose-dependent manner, leading to better blood sugar control. Due to its long half-life, it is administered once weekly, improving patient compliance. It is typically prescribed when diet and exercise alone are not sufficient to achieve desired glycemic targets.