can too much metformin cause hypoglycemia
These drugs lower blood sugar primarily by causing more of the body's own insulin to be released. Metformin lowers the amount of sugar in your blood by helping your body respond better to its own insulin. Metformin (metformin hydrochloride tablets) does not cause your body to produce more insulin. Therefore, Metformin rarely causes hypoglycemia (low blood sugar) and it doesn't usually cause weight gain.