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. Metformin is a prescription medication used to treat the symptoms of Type 2 Diabetes Mellitus. Learn about side effects, dosages, drug interactions, and more. Metformin hydrochloride (1,1-dimethylbiguanide hydrochloride) is freely soluble in water, slightly soluble in ethanol, but almost insoluble in acetone, ether, or chloroform. 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. Used as an adjunct to diet and exercise for the management of type 2 diabetes mellitus. Immediate-release tablets and oral solution used in adult and pediatric patients ≥10 years of age; extended-release tablets used in adult patients. View metformin hydrochloride information, including dose, uses, side-effects, renal impairment, pregnancy, breast feeding, contra-indications and monitoring requirements. 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. Metformin is a generic prescription medication used to help manage blood sugar levels in adults and some children with type 2 diabetes. It works by decreasing sugar production in the liver. 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. Trusted medication guides for 21 commonly prescribed drugs including Metformin, Lisinopril, Wellbutrin, ED treatments, and more. Dosages, side effects, interactions, and 2026 safety updates from FDA and Mayo Clinic sources.