Metformin (Glucophage®) is a prescription diabetes medication used for lowering blood sugar levels in people with type 2 diabetes. This drug is available in several forms and strengths.
Regular metformin tablets come in five strengths. There are two forms of the long-acting tablets, and a liquid version of metformin is also available.
The recommended starting dose of regular metformin for children ages 10 to 16 is 500 mg twice daily. For people 17 years old and over, the usual starting dosage is 500 mg twice a day or 850 mg once a day. With the long-acting form of metformin, the recommended starting dose is 500 mg one daily.
(Click Metformin Dosing for a more detailed list of the various strengths of metformin currently available. This article also offers helpful information on how and when to take this medication.)