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Glucophage

Active Ingredient:
Metformin Hydrochloride
Origin:
EU

Glucophage (Metformin Hydrochloride)

Glucophage is a medication that contains the active ingredient metformin hydrochloride, a biguanide used orally for the management of blood glucose. It is marketed in the European Union and is available by prescription. The product’s specific strength and dosage form are not specified, but it belongs to the antidiabetic therapeutic class.

Manufacturer / TM Owner

Merck A.E.

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Indications & Clinical Uses

Glucophage is prescribed primarily for the treatment of type 2 diabetes mellitus, helping to control elevated blood sugar levels. It may also be used as part of a broader diabetes management plan that includes diet and exercise.

  • Improves glycemic control in adults with type 2 diabetes
  • Used as an adjunct to diet and exercise
  • May be combined with other antidiabetic agents when monotherapy is insufficient
  • Occasionally prescribed off‑label for polycystic ovary syndrome under specialist guidance

Side Effects

Metformin hydrochloride can cause a range of side effects, most of which are mild and transient. Serious adverse reactions are less common but require medical attention.

Common

  • Gastrointestinal upset (nausea, diarrhea, abdominal discomfort)
  • Metallic taste in the mouth
  • Decreased appetite
  • Mild skin rash or itching

Serious

  • Lactic acidosis (rare but potentially life‑threatening)
  • Severe allergic reactions such as angioedema or Stevens‑Johnson syndrome

Precautions & Warnings

Before starting Glucophage, certain health considerations should be reviewed to minimize risks. Patients should discuss the following with their healthcare provider:

  • Existing kidney or liver impairment
  • History of heart failure or cardiovascular disease
  • Alcohol consumption patterns
  • Pregnancy, planning to become pregnant, or breastfeeding status
  • Use of contrast imaging studies requiring iodine
  • Any known hypersensitivity to metformin or other biguanides

Avoid Interactions

Metformin can interact with several medications, affecting its efficacy or safety profile. Awareness of these interactions helps prevent complications.

Avoid

  • Iodinated contrast agents (risk of acute kidney injury)
  • Cimetidine and other drugs that reduce renal clearance of metformin
  • Certain diuretics that may cause dehydration

Use with caution

  • Alcoholic beverages (increase risk of lactic acidosis)
  • Beta‑blockers or calcium channel blockers (may mask hypoglycemia symptoms)
  • Corticosteroids (can raise blood glucose levels)

Frequently Asked Questions

Metformin reduces hepatic glucose production and enhances peripheral insulin sensitivity, helping lower blood sugar levels without directly stimulating insulin release.

Yes, Glucophage is marketed and approved for prescription use in the EU for the treatment of type 2 diabetes mellitus.

Metformin is generally contraindicated in patients with severe renal impairment; dosage adjustments or alternative therapies may be needed based on kidney function.

The most frequently reported side effects include gastrointestinal symptoms such as nausea, diarrhea, abdominal discomfort, and a metallic taste.

It is usually recommended to take metformin with meals and to start with a low dose that is gradually increased, which can help minimize stomach irritation.

Lactic acidosis is a rare but serious adverse effect; risk increases in patients with significant renal, hepatic, or cardiac dysfunction, or excessive alcohol intake.

The safety of metformin in pregnancy has not been definitively established; clinicians weigh potential benefits against unknown risks and may consider alternative treatments.

Alcohol can increase the risk of lactic acidosis and may exacerbate gastrointestinal side effects, so moderate or limited intake is advised.

Metformin should be temporarily discontinued before and after the procedure, typically for 48 hours, to reduce the risk of kidney injury and accumulation of the drug.

Certain antacids, diuretics, and supplements that affect kidney function or electrolyte balance may interact; patients should consult a pharmacist before adding OTC products.

Metformin improves the body’s response to its own insulin and lowers glucose production, whereas insulin therapy provides external insulin to directly lower blood glucose.

Metformin is sometimes prescribed for adolescents with type 2 diabetes, but dosing and safety must be evaluated by a pediatric specialist.

Published by

GNH India Pharmaceuticals Limited

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Last updated:

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