Mirovian Xr (Metformin Hydrochloride)

• Metformin is used primarily in the management of disorders related to glucose metabolism, especially type 2 diabetes mellitus.
• Type 2 diabetes mellitus: improves glycemic control by lowering fasting and post‑prandial blood glucose levels.

• Metformin reduces hepatic gluconeogenesis and increases peripheral insulin sensitivity by activating AMP‑activated protein kinase (AMPK). This leads to decreased glucose production in the liver and enhanced glucose uptake in muscle and adipose tissue, resulting in lower circulating blood glucose concentrations.

Metformin is associated with a range of adverse reactions that vary in frequency and severity.

Common Side Effects

• Gastrointestinal upset: nausea, abdominal discomfort, and loss of appetite.
• Diarrhea: watery stools occurring especially after treatment initiation.
• Metallic taste: transient alteration in taste perception.
• Weight loss: modest reduction in body weight over time.
• Vitamin B12 deficiency: gradual decrease in serum B12 levels with long‑term use.

Serious or Rare Side Effects

• Lactic acidosis: a rare but life‑threatening accumulation of lactate.
• Severe skin reactions: including Stevens‑Johnson syndrome or toxic epidermal necrolysis.
• Hepatotoxicity: abnormal liver function tests or hepatitis.
• Hypoglycemia: when combined with insulin or insulin‑secretagogues.
• Acute renal failure: especially in patients with pre‑existing kidney disease.

Metformin should be used with careful clinical assessment and monitoring.

• Renal function: assess creatinine clearance before initiation and periodically thereafter.
• Hepatic function: avoid in patients with significant liver disease.
• Alcohol consumption: limit intake to reduce risk of lactic acidosis.
• Concomitant drugs: review for agents that may impair renal function or increase metformin levels.
• Pregnancy and lactation: use only if clearly needed after risk‑benefit evaluation.
• Store at room temperature: keep in the original container, protect from moisture and heat.

Metformin may interact with several medicines, requiring attention to avoid adverse outcomes.

Major Interactions (Avoid)

• Iodinated contrast agents: can precipitate acute renal failure.
• Cimetidine: may increase metformin plasma concentrations.
• Alcohol: potentiates risk of lactic acidosis.

Moderate Interactions (Monitor Closely)

• Sulfonylureas or insulin: increased risk of hypoglycemia.
• Diuretics: may affect renal clearance of metformin.
• ACE inhibitors or ARBs: monitor renal function and electrolytes.
• Beta‑blockers: may mask hypoglycemia symptoms.
• Oral corticosteroids: can raise blood glucose, requiring dose adjustments.