Used to manage type 2 diabetes by improving glycemic control. It works by inhibiting the DPP-4 enzyme, which increases the levels of active incretin hormones that stimulate insulin release in a glucose-dependent manner. This helps lower blood glucose levels without causing significant hypoglycemia. Often prescribed as monotherapy or in combination with other antidiabetic agents like metformin. Its once-daily dosing improves patient adherence. Particularly beneficial for patients needing effective glucose control with a low risk of weight gain or hypoglycemic episodes.