Metformina Hexal Ag (Metformin Hydrochloride)

Metformina Hexal Ag is used to manage disorders of glucose metabolism, primarily in the type 2 diabetes pathway.

• Type 2 diabetes mellitus: improves glycaemic control and reduces fasting plasma glucose.
• Impaired glucose tolerance: helps delay progression to overt diabetes.
• Metabolic syndrome: assists in improving insulin sensitivity and modest weight management.

• Metformin reduces hepatic gluconeogenesis and increases peripheral glucose uptake by activating AMP‑activated protein kinase (AMPK). This leads to decreased hepatic glucose output, enhanced insulin‑mediated glucose utilization in muscle and adipose tissue, and modest reductions in intestinal glucose absorption, collectively improving overall glycaemic control.

Metformina Hexal Ag may cause a range of adverse reactions, most of which are mild and transient.

Common Side Effects

• Nausea: mild to moderate stomach upset.
• Diarrhoea: loose stools, often early in therapy.
• Abdominal discomfort: cramping or bloating.
• Metallic taste: transient alteration of taste perception.
• Loss of appetite: reduced desire to eat.
• Vomiting: occasional emesis, usually early on.

Serious or Rare Side Effects

• Lactic acidosis: rare but life‑threatening metabolic disturbance.
• Severe hypoglycaemia: when combined with other glucose‑lowering agents.
• Vitamin B12 deficiency: may develop with long‑term use.
• Hepatic dysfunction: elevated liver enzymes or hepatitis.
• Skin rash or hypersensitivity: including Stevens‑Johnson syndrome.
• Allergic reactions: anaphylaxis or angioedema.

Before initiating Metformina Hexal Ag, several safety considerations should be reviewed.

• Renal function: assess creatinine clearance; avoid in severe renal impairment.
• Hepatic function: monitor liver enzymes; use cautiously in hepatic disease.
• Monitor blood glucose: adjust dose based on glycaemic response.
• Alcohol intake: limit consumption to reduce lactic acidosis risk.
• Elderly patients: start with lower dose and titrate slowly.
• Store at room temperature: keep in the original pack, protect from moisture and heat.

Metformina Hexal Ag can interact with several medicines, altering its efficacy or safety profile.

Major Interactions (Avoid)

• Iodinated contrast agents: increase risk of renal dysfunction and lactic acidosis.
• Cimetidine: may raise metformin plasma concentrations.
• Alcohol: potentiates lactic acidosis risk.
• Diuretics (loop or thiazide): can impair renal clearance of metformin.
• Nifedipine: may enhance metformin’s glucose‑lowering effect.

Moderate Interactions (Monitor Closely)

• Beta‑blockers: may mask hypoglycaemia symptoms.
• ACE inhibitors/ARBs: monitor renal function and electrolytes.
• Other antidiabetic agents: risk of additive hypoglycaemia.
• Thyroid hormones: may affect metabolic rate and glucose control.
• Corticosteroids: can increase blood glucose, requiring dose adjustments.