Indapamide Lp Viatris (Indapamide)

Indapamide is indicated for conditions involving excess fluid retention or elevated arterial pressure.

• Hypertension: reduces systolic and diastolic blood pressure, helping to achieve target levels.
• Edema associated with heart failure: promotes diuresis to decrease fluid overload and improve symptoms.
• Edema associated with renal disease: facilitates fluid removal, aiding in the management of renal‑related swelling.

• Indapamide acts on the distal convoluted tubule of the nephron by inhibiting the Na⁺/Cl⁻ cotransporter. This blockade reduces sodium and chloride reabsorption, leading to increased urinary excretion of water and electrolytes. The resulting diuresis lowers plasma volume, while a direct vasodilatory effect on peripheral arterioles decreases vascular resistance, together producing a fall in blood pressure. The combined natriuretic and vasodilatory actions contribute to sustained antihypertensive efficacy.

Indapamide may cause a range of adverse reactions, varying in frequency and severity.

Common Side Effects

• Increased urination: may experience a noticeable rise in frequency of voiding, especially during the first days of therapy.
• Low potassium (hypokalemia): can cause muscle weakness, cramps, or fatigue.
• Dizziness or light‑headedness: often occurs when standing up quickly due to reduced blood pressure.
• Elevated blood glucose: may modestly raise glucose levels, requiring monitoring in diabetic patients.

Serious or Rare Side Effects

• Severe electrolyte imbalance: significant hyponatremia, hyperuricemia, or hypokalemia that may need medical intervention.
• Acute kidney injury: sudden increase in serum creatinine or reduced urine output indicating renal dysfunction.
• Allergic reactions: rash, pruritus, swelling, or rare anaphylactic responses requiring immediate care.

When prescribing Indapamide, clinicians should consider several precautionary measures to ensure safe use.

• Monitor electrolytes: regularly check serum potassium, sodium, and uric acid levels.
• Assess renal function: evaluate creatinine and glomerular filtration rate before and during treatment.
• Evaluate blood pressure: avoid excessive hypotension, especially in volume‑depleted patients.
• Caution in diabetes: monitor glucose as the drug may raise blood sugar.
• Avoid use in severe hepatic impairment: limited data suggest increased risk of toxicity.
• Store at ambient temperature: keep below 25 °C in the original container, protect from moisture and direct sunlight.

Indapamide can interact with other medicines, altering its diuretic effect or electrolyte balance.

Major Interactions (Avoid)

• Lithium: concurrent use can raise lithium levels, risking toxicity.
• NSAIDs (e.g., ibuprofen, naproxen): may reduce diuretic efficacy and worsen renal function.
• ACE inhibitors or ARBs: combined therapy can precipitate severe hypotension or hyperkalemia.

Moderate Interactions (Monitor Closely)

• Antidiabetic agents: diuretic‑induced hyperglycemia may require dose adjustment.
• Antihypertensives (beta‑blockers, calcium channel blockers): additive blood‑pressure‑lowering effect may cause excessive hypotension.
• Digoxin: electrolyte shifts, especially low potassium, can increase digoxin toxicity risk.