VOGLIBET-GM 1 (Glimepiride + Metformin + Voglibose) is a combination of three antidiabetic medicines: Glimepiride, metformin and voglibose. They work by different mechanisms to provide better control of blood sugar when single or dual therapy is not effective. Glimepiride is a sulfonylurea which works by increasing the amount of insulin released by the pancreas to lower the blood glucose. Metformin is a biguanide which lowers glucose production in the liver, delays glucose absorption from intestines and increases the body's sensitivity to insulin. Voglibose is an alpha-glucosidase inhibitor which prevents breakdown of complex sugars into simple sugars such as glucose. This prevents the blood glucose levels from rising to very high levels after meals.