Generic Name:Metformin (met-forĀ“min) Brand Name:Glucophage, Glucophage XR Classifications: hormone and synthetic substitute; antidiabetic; biguanide Pregnancy Category: B Availability : 500 mg, 850 mg tab-lets; 500 mg sustained release   Actions Biguanide oral hypoglycemic agent. Unlike sulfonylureas, biguanides do not stimulate the release of insulin from the beta cells of the pancreas. Mechanism of action...