Glucophage is used to control blood sugar levels. By your doctor. If the patient is taking Glucophage tablets, the starting dose is 500 mg daily with the evening meal. Metformin comes as a tablet and an extended-release tablet to take by mouth. Glucophage does not increase the body's production of insulin. Glucophage is from the biguanide class of oral anti-hyperglycemic agents. People who are overweight. Glucophage online purchase is cheap and available to any customer. Metformin reduces the amount of glucose you absorb from your food and the amount of sugar produced by cells in the liver.