Metformina Eg Stada (Metformin Hydrochloride)

Metformin is used in the management of disorders related to glucose metabolism, particularly type 2 diabetes mellitus.

• Type 2 diabetes mellitus: improves glycemic control by lowering fasting and post‑prandial blood glucose levels.
• Prediabetes (impaired glucose tolerance): delays progression to overt diabetes when used as part of lifestyle intervention.
• Polycystic ovary syndrome (off‑label): helps reduce insulin resistance and may improve menstrual regularity.

• Metformin primarily inhibits hepatic gluconeogenesis, reduces intestinal glucose absorption, and enhances peripheral insulin sensitivity by activating AMP‑activated protein kinase (AMPK). These actions collectively lower circulating glucose without stimulating insulin secretion.

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

Common Side Effects

• Nausea: mild to moderate stomach upset.
• Diarrhea: loose stools, often transient.
• Abdominal discomfort: cramping or pain.
• Metallic taste: transient alteration of taste perception.
• Loss of appetite: reduced desire to eat.
• Flatulence: increased intestinal gas.

Serious or Rare Side Effects

• Lactic acidosis: rare but potentially fatal metabolic disturbance.
• Severe hypoglycemia: usually when combined with other glucose‑lowering agents.
• Vitamin B12 deficiency: may develop with long‑term use.
• Skin rash or hypersensitivity reactions.
• Hepatic dysfunction: abnormal liver enzymes.
• Acute pancreatitis: very rare occurrence.

When prescribing Metformina Eg Stada, several safety considerations should be observed.

• Renal function assessment: avoid or adjust dose in patients with impaired kidney function.
• Monitor blood glucose: regular testing to avoid hypoglycemia, especially with combination therapy.
• Hepatic function evaluation: use caution in patients with liver disease.
• Elderly patients: start at lower dose and titrate slowly.
• Contraindication in severe heart failure: increased risk of lactic acidosis.
• Store at room temperature: keep in the original packaging, protect from moisture and heat.

Metformin may interact with other medicines, influencing its efficacy or safety.

Major Interactions (Avoid)

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

Moderate Interactions (Monitor Closely)

• Sulfonylureas or insulin: heightened risk of hypoglycemia.
• Beta‑blockers: may mask hypoglycemia symptoms.
• ACE inhibitors or ARBs: may affect renal function, requiring monitoring.
• NSAIDs: can reduce renal clearance of metformin.
• Thiazide diuretics: may increase plasma glucose, requiring dose adjustment.