Essentially medicines like Metformin, Sitagliptin, Vildagliptin, Saxagliptin and Linagliptin do not produce significant hypoglycemia (low blood sugars) by itself. Metformin acts by utilizing the existing insulin in the body and gliptins by stimulating the pancreatic beta cells in phased manner.

However if this is combined with Insulin or other diabetic medications, they may result in low blood sugars. Do not change or stop medications without meeting your doctor.