Metformin immediate release (IR), marketed under brand names like Glucophage IR, is an oral medication widely used to treat type 2 diabetes. It belongs to a class of drugs called biguanides. It works primarily by decreasing glucose production by the liver (hepatic gluconeogenesis), reducing intestinal absorption of glucose, and improving insulin sensitivity by increasing peripheral glucose uptake and utilization. Metformin is often a first-line treatment for managing type 2 diabetes, particularly in individuals who are overweight or obese, due to its efficacy, generally favorable side effect profile, and potential for weight management benefits.
While metformin is primarily indicated for type 2 diabetes, it is sometimes used off-label for conditions such as polycystic ovary syndrome (PCOS). Research also explores its potential in areas like longevity and certain cancers, though these applications are largely investigational and not standard clinical practice.
Metformin immediate release is taken orally, typically with meals, to help reduce gastrointestinal side effects. The dosage is user-directed and must be set by a licensed clinician, who will determine the appropriate starting dose and titration schedule based on individual patient needs, kidney function, and glycemic control targets. Regular monitoring of kidney function, especially in elderly patients, is crucial during metformin therapy.
Deep dive
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Known interactions
Category rule: supplement × medication
Note
Some supplements change how the body processes medications (absorption, liver enzymes, or additive effects).
Specific pairs are checked against a licensed drug database and shown with their own severity. Always confirm with your provider or pharmacist.
Category rule: vitamin × medication
Note
Certain vitamins interact with specific medications (e.g., vitamin K with blood thinners).
Specific pairs are checked against a licensed source; confirm with your provider.
Compound-pair rule
Note
Long-term metformin use lowers B12 levels.
Monitor and supplement B12 as needed.
Frequently asked
Sources referenced
["NIH Office of Dietary Supplements (ODS)", "MedlinePlus", "PubChem", "Mayo Clinic", "FDA Label (for Metformin)", "EMA SmPC (Summary of Product Characteristics for Metformin)", "Cochrane Library", "DrugBank"]
Stackwise compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.
Related compounds
Others in the medication category or studied for the same goals.
