Glucophage

Active Ingredient:: Metformin Hydrochloride
Origin:: EU

Glucophage (Metformin Hydrochloride)

Q: What is Glucophage and how does it work in type 2 diabetes?

Glucophage is a brand name for metformin hydrochloride, a biguanide oral antidiabetic drug. It lowers blood glucose by decreasing hepatic glucose production and improving peripheral insulin sensitivity.

Q: How should Glucophage be taken for optimal blood sugar control?

Glucophage is usually taken with meals to reduce gastrointestinal upset. The exact dosing schedule should follow the prescribing clinician’s instructions and may be adjusted based on blood glucose monitoring.

Q: Can Glucophage be used in patients with kidney problems?

Glucophage is contraindicated in severe renal impairment (eGFR below 30 mL/min/1.73 m²). Dose adjustments or alternative therapies may be considered for moderate impairment, based on renal function assessment.

Q: What are the most common side effects of Glucophage?

Common side effects include nausea, abdominal discomfort, diarrhea, a metallic taste, decreased appetite, mild headache, and modest weight loss.

Q: When should a patient be concerned about lactic acidosis while on Glucophage?

Symptoms such as rapid breathing, muscle pain, unusual fatigue, abdominal discomfort, or feeling cold should prompt immediate medical evaluation, as they may indicate lactic acidosis, a rare but serious condition.

Q: Is it safe to drink alcohol while taking Glucophage?

Alcohol can increase the risk of lactic acidosis and may affect blood glucose control. Patients should limit alcohol intake and discuss any consumption with their healthcare provider.

Q: How does Glucophage interact with insulin or sulfonylureas?

When combined with insulin or sulfonylureas, Glucophage can increase the risk of hypoglycemia. Dose adjustments and close glucose monitoring are recommended.

Q: What laboratory tests are recommended before starting Glucophage?

Baseline renal function (eGFR or serum creatinine), liver enzymes, and fasting blood glucose or HbA1c are typically assessed before initiating therapy.

Q: Can Glucophage be taken during pregnancy or breastfeeding?

The safety of Glucophage during pregnancy or lactation should be evaluated by a healthcare professional. In some cases, it may be continued if benefits outweigh potential risks.

Q: How does Glucophage affect weight in patients with type 2 diabetes?

Glucophage is often associated with modest weight loss or weight stabilization, which can be beneficial for many patients with type 2 diabetes.

Glucophage is a prescription medication whose active ingredient is metformin hydrochloride, a biguanide oral antidiabetic drug. It is supplied in tablet form (strength and dosage form may vary) and is marketed in the European Union. Glucophage works by lowering hepatic glucose production and improving peripheral insulin sensitivity, making it a standard option for managing type 2 diabetes mellitus. It is often prescribed as part of a comprehensive lifestyle and medication plan.

Manufacturer / TM Owner

Merck Santé S.A.S.

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Indications & Clinical Uses

Glucophage is indicated for the treatment of several aspects of type 2 diabetes management.

As monotherapy in patients whose diet and exercise alone are insufficient to control blood glucose.
In combination with other oral antidiabetic agents (e.g., sulfonylureas, DPP‑4 inhibitors) to improve glycemic control.
As an adjunct to insulin therapy to reduce the required insulin dose.
For patients who are overweight or obese, helping with weight management while controlling glucose.
May be considered in pre‑diabetes to delay progression to diabetes (off‑label in some regions).

Side Effects

Side effects of Glucophage vary in frequency and severity; they are commonly categorized as mild or serious.

Common

Gastrointestinal upset such as nausea, abdominal discomfort, or diarrhea.
Metallic taste in the mouth.
Decreased appetite.
Mild headache.
Weight loss.

Serious

Lactic acidosis, characterized by rapid breathing, muscle pain, or unusual fatigue.
Severe hypoglycemia when combined with insulin or sulfonylureas.
Hepatotoxicity presenting as jaundice or elevated liver enzymes.
Skin reactions like Stevens‑Johnson syndrome or toxic epidermal necrolysis.

Precautions & Warnings

Before starting Glucophage, certain precautions and warnings should be reviewed to ensure safe use.

Assess renal function; contraindicated in severe renal impairment (eGFR <30 mL/min/1.73 m²).
Monitor liver enzymes; avoid use in patients with acute or chronic hepatic disease.
Evaluate for conditions predisposing to hypoxia (e.g., heart failure, recent myocardial infarction) due to lactic acidosis risk.
Adjust dose in elderly patients or those with reduced gastrointestinal absorption.
Discontinue before any radiographic study using iodinated contrast agents; resume only after renal function is re‑checked.
Counsel patients on recognizing symptoms of lactic acidosis and to seek immediate medical attention.
Advise consistent dietary habits to minimize gastrointestinal side effects.

Avoid Interactions

Glucophage can interact with other medicines, affecting its efficacy or safety.

Avoid

Iodinated contrast agents used for radiographic procedures.
Cimetidine, which can raise metformin levels.
Didanosine and other nucleoside reverse transcriptase inhibitors that increase lactic acidosis risk.

Use with caution

Sulfonylureas or insulin, due to additive hypoglycemia risk.
Diuretics that may impair renal clearance.
Alcohol consumption, which can predispose to lactic acidosis.

Frequently Asked Questions

Glucophage is a brand name for metformin hydrochloride, a biguanide oral antidiabetic drug. It lowers blood glucose by decreasing hepatic glucose production and improving peripheral insulin sensitivity.

Glucophage is usually taken with meals to reduce gastrointestinal upset. The exact dosing schedule should follow the prescribing clinician’s instructions and may be adjusted based on blood glucose monitoring.

Glucophage is contraindicated in severe renal impairment (eGFR below 30 mL/min/1.73 m²). Dose adjustments or alternative therapies may be considered for moderate impairment, based on renal function assessment.

Common side effects include nausea, abdominal discomfort, diarrhea, a metallic taste, decreased appetite, mild headache, and modest weight loss.

Symptoms such as rapid breathing, muscle pain, unusual fatigue, abdominal discomfort, or feeling cold should prompt immediate medical evaluation, as they may indicate lactic acidosis, a rare but serious condition.

Alcohol can increase the risk of lactic acidosis and may affect blood glucose control. Patients should limit alcohol intake and discuss any consumption with their healthcare provider.

When combined with insulin or sulfonylureas, Glucophage can increase the risk of hypoglycemia. Dose adjustments and close glucose monitoring are recommended.

Baseline renal function (eGFR or serum creatinine), liver enzymes, and fasting blood glucose or HbA1c are typically assessed before initiating therapy.

The safety of Glucophage during pregnancy or lactation should be evaluated by a healthcare professional. In some cases, it may be continued if benefits outweigh potential risks.

Glucophage is often associated with modest weight loss or weight stabilization, which can be beneficial for many patients with type 2 diabetes.

If a dose is missed, the patient should take it as soon as remembered unless it is close to the next scheduled dose. In that case, skip the missed dose and continue with the regular schedule.

No specific dietary restrictions are required, but patients are advised to maintain a balanced diet and consistent carbohydrate intake to help minimize gastrointestinal side effects.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated: 27 Jun 2026

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