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. See recommended Metformin doses by age and product type. Learn about IR, ER, combos, dose adjustments, and tips for taking Metformin safely. 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 hydrochloride (1,1-dimethylbiguanide hydrochloride) is freely soluble in water, slightly soluble in ethanol, but almost insoluble in acetone, ether, or chloroform. 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. 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 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. 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. Metformin is used alone or with other medications, including insulin, to treat type 2 diabetes (condition in which the body does not use insulin normally and, therefore, cannot control the amount of sugar in the blood). Metformin package insert / prescribing information for healthcare professionals. Includes: indications, dosage, adverse reactions and pharmacology.