Overview
Biguanides (Metformin) tell the liver to decrease its production of glucose, which lowers glucose levels in the bloodstream.
Review Date 2/10/2023
Updated by: Sandeep K. Dhaliwal, MD, board-certified in Diabetes, Endocrinology, and Metabolism, Springfield, VA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.