Why do I still get low sugar on Metformin?
Metformin is the most common medication used in the treatment of type 2 diabetes. It works by decreasing the amount of glucose secreted by the liver. Because it does not increase the amount of insulin secreted by the pancreas, it is generally not associated with hypoglycemia (usually defined as blood glucose less than 60-70 mg% with symptoms). If you are taking other medications that are associated with hypoglycemia (especially a sulfonylurea or insulin), then adding metformin can aggravate the tendency for hypoglycemia, but by itself it is not typically associated with hypoglycemia. I would suggest that you review with your healthcare provider what factors might be contributing to low blood glucose levels in your situation.