Vildagliptin 50 mg & Metformin 850 mg Tablets contains a combination of metformin and vildagliptin. Metformin makes the body more sensitive to insulin (a hormone involved in glucose metabolism). This helps our body cells utilize more of the circulating blood glucose. Additionally, it can stop glucose production by the liver and reduce its absorption in the body. Vildagliptin controls blood sugar levels by blocking the actions of an enzyme called dipeptidyl peptidase (DPP)-4 that indirectly increases insulin secretion in the body. Collectively, this medicine controls blood sugar levels in patients with type II diabetes.