Getting the right dose is crucial for maximizing metformin's benefits while minimizing side effects. Immediate-release tablets require multiple daily doses but offer flexible dosing options. The usual adult dose starts at 500 mg twice daily or 850 mg once daily with meals. Metformin is used to treat high blood sugar levels that are caused by a type of diabetes mellitus or sugar diabetes called type 2 diabetes. With this type of diabetes, insulin produced by the pancreas is not able to get sugar into the cells of the body where it can work properly. Detailed Metformin dosage information for adults and children. Includes dosages for Diabetes Type 2; plus renal, liver and dialysis adjustments. Metformin is a prescription drug used for treating type 2 diabetes in adults and children. Side effects, storage and dosing information, drug interactions, and pregnancy safety are provided. Metformin is a first-line treatment used for type 2 diabetes in adults and children 10 years and older to help improve blood sugar levels. It is also used off-label to improve symptoms of polycystic ovarian syndrome (PCOS) and other conditions. Learn about side effects, how it's taken, and more of metformin. It's a generic prescription drug that's used to help manage blood sugar levels in adults and some children with type 2 diabetes. Key takeaways: Metformin is a prescription medication that’s FDA-approved to treat Type 2 diabetes. Without insurance, 60 tablets of generic metformin 500 mg cost an average of $14.91. Insurance plans generally cover metformin to manage Type 2 diabetes, but coverage may vary by provider. This article describes the dosages of metformin, as well as its strengths and how to take it. When taking metformin, always follow the dosage prescribed by your doctor. Metformin is a common treatment for diabetes. But it can cause digestive problems and other side effects. Learn more about the uses and side effects here. Overview: Metformin is medicine you take to help keep your blood sugar from getting too high. Common side effects may include stomach problems, such as diarrhea, nausea, vomiting, stomach pain.