Europe — EMA
Glucophage
Glucophage (metformin) is an oral antidiabetic medication for type 2 diabetes, detailing uses, side effects, precautions, and drug interactions.
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What is Metformin Hydrochloride?
Glucophage is a prescription oral medication containing metformin hydrochloride, a biguanide antidiabetic agent. It is supplied in tablet form (strength unspecified) for use in the European market. Metformin works by reducing hepatic glucose production and improving peripheral insulin sensitivity, helping to control blood glucose levels in adults with type 2 diabetes mellitus. It is typically prescribed as part of a comprehensive diabetes management plan that includes diet, exercise, and regular monitoring.
What is Metformin Hydrochloride used for?
Glucophage (metformin hydrochloride) is prescribed to lower elevated blood glucose in adults with type 2 diabetes mellitus, particularly when lifestyle measures alone do not achieve glycemic goals. It is commonly incorporated into a broader treatment plan that includes diet, physical activity, and regular monitoring.
- First‑line oral therapy for newly diagnosed type 2 diabetes. - Added to existing antidiabetic regimens when monotherapy is insufficient. - Combined with insulin in patients requiring additional glucose control. - Used in some cases of impaired glucose tolerance to delay onset of diabetes. - Occasionally employed off‑label for polycystic ovary syndrome under specialist guidance.
What are the side effects of Metformin Hydrochloride?
Metformin may cause a range of adverse effects, most of which are mild and transient, while rare serious reactions require medical attention.
Common: - Nausea or upset stomach, especially when therapy is initiated. - Diarrhea or loose stools that often improve with dose adjustment. - Abdominal discomfort or cramping. - A metallic or “off‑taste” sensation in the mouth. - Weight loss or decreased appetite.
Serious: - Lactic acidosis, a rare but life‑threatening metabolic complication. - Severe hypoglycemia when combined with insulin or secretagogues. - Marked vitamin B12 deficiency leading to anemia or neuropathy. - Skin rash or hypersensitivity reactions. - Persistent elevated lactate levels requiring immediate medical evaluation.
What precautions apply to Metformin Hydrochloride?
Before starting Glucophage, clinicians assess several patient‑specific factors to minimize risks and ensure safe use.
- Assess renal function; metformin is contraindicated in severe renal impairment. - Evaluate liver disease, as hepatic dysfunction may increase lactic acidosis risk. - Review any history of alcohol abuse or conditions that predispose to hypoxia. - Consider age; older adults may require lower initial doses. - Monitor vitamin B12 levels during long‑term therapy. - Discontinue before any radiologic studies that use iodinated contrast agents.
What does Metformin Hydrochloride interact with?
Metformin can interact with several medications, altering its effectiveness or increasing the likelihood of adverse events.
Avoid: - Iodinated contrast agents used in imaging studies (risk of acute kidney injury). - Cimetidine, which can raise metformin plasma concentrations. - Certain antivirals such as dolutegravir that may affect renal clearance.
Use with caution: - Insulin or sulfonylureas, which increase hypoglycemia risk. - Diuretics that may impair renal function. - ACE inhibitors or ARBs in patients with fluctuating kidney function. - Alcohol excess, which can precipitate lactic acidosis. - Other drugs that may affect renal clearance, such as NSAIDs.
Frequently asked questions
What is the mechanism of action of Glucophage (metformin) in type 2 diabetes?+
Can Glucophage be used as a first‑line treatment for newly diagnosed type 2 diabetes?+
What laboratory tests should be monitored while taking Glucophage?+
Is it safe to take Glucophage during pregnancy?+
How should Glucophage be taken to reduce gastrointestinal side effects?+
What should a patient do if they miss a dose of Glucophage?+
Why is vitamin B12 deficiency associated with long‑term metformin therapy?+
Can Glucophage be combined with insulin, and what are the risks?+
What are the signs of lactic acidosis that require emergency care?+
Should Glucophage be stopped before undergoing imaging that uses iodinated contrast?+
Is dose adjustment necessary for elderly patients taking Glucophage?+
What dietary considerations are recommended while on Glucophage?+
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