Santaliptin is used for:

Treating type 2 diabetes in patients who cannot control blood sugar levels by diet and exercise alone. It is used along with diet and exercise. It may be used alone or with other antidiabetic medicines.

Santaliptin is a dipeptidyl peptidase-4 (DPP-4) inhibitor. It works by increasing the amount of insulin released by your body and decreasing the amount of sugar made by your body.