Glucophage Xr (Metformin Hydrochloride)

Glucophage XR is indicated for the management of type 2 diabetes mellitus as part of a comprehensive treatment plan that includes diet and exercise.

• Improves glycemic control in adults with type 2 diabetes.
• Used as monotherapy when diet and exercise alone are insufficient.
• Can be combined with other oral antidiabetic agents or insulin.
• Helps reduce fasting and post‑prandial blood glucose levels.
• May be considered for patients who benefit from once‑daily dosing.

Glucophage XR may 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 such as nausea, diarrhea, or abdominal discomfort.
• Metallic taste in the mouth.
• Decreased appetite.
• Mild headache.
• Weight loss.

Serious

• Lactic acidosis, a rare but life‑threatening condition.
• Severe skin reactions (e.g., Stevens‑Johnson syndrome).
• Persistent vomiting or dehydration.
• Significant elevation of liver enzymes.
• Hypoglycemia when combined with other glucose‑lowering drugs.

Before starting Glucophage XR, certain health considerations should be reviewed to minimize risks.

• Assess renal function; avoid use in severe renal impairment.
• Monitor liver enzymes; discontinue if significant hepatic disease is present.
• Evaluate for conditions that predispose to hypoxia (e.g., heart failure, recent myocardial infarction).
• Use caution in elderly patients due to increased risk of lactic acidosis.
• Discontinue before any radiographic studies that use iodinated contrast agents.
• Counsel patients on recognizing symptoms of lactic acidosis and to seek immediate care if they occur.

Glucophage XR can interact with several medications, affecting its efficacy or safety profile.

Avoid

• Iodinated contrast media used in imaging studies; may precipitate renal dysfunction.
• Cimetidine, as it can increase metformin plasma concentrations.
• Certain diuretics that may impair renal function.

Use with caution

• Alcohol, which can increase the risk of lactic acidosis.
• Other antidiabetic agents, especially sulfonylureas, due to heightened hypoglycemia risk.
• Beta‑blockers, which may mask hypoglycemia symptoms.
• Corticosteroids, as they can raise blood glucose levels.
• ACE inhibitors or ARBs, requiring monitoring of renal function.