Indapamide Viatris (Indapamide)

Indapamide is used as a thiazide-like diuretic to manage conditions involving elevated blood pressure and fluid overload.

• Hypertension: lowers systolic and diastolic blood pressure, helping to prevent cardiovascular complications.
• Congestive heart failure-related edema: reduces excess fluid accumulation, improving symptoms such as swelling and shortness of breath.
• Renal disease-associated edema: promotes diuresis to alleviate peripheral edema in patients with impaired kidney function.

• Indapamide acts on the distal convoluted tubule of the nephron by inhibiting the Na⁺/Cl⁻ cotransporter. This blockade decreases sodium and chloride reabsorption, leading to increased urinary excretion of water and electrolytes. The resulting reduction in extracellular fluid volume lowers peripheral vascular resistance, contributing to its antihypertensive effect. Additionally, indapamide exhibits mild vasodilatory properties that further aid overall blood pressure reduction.

Indapamide may cause a range of adverse reactions, which are categorized by frequency and severity.

Common Side Effects

• Increased urination: more frequent need to void.
• Electrolyte imbalance: mild reductions in potassium or sodium.
• Dizziness or light-headedness: especially on standing.
• Headache: mild to moderate intensity.

Serious or Rare Side Effects

• Severe dehydration: marked fluid loss needing medical care.
• Significant electrolyte disturbances: hypokalemia or hyponatremia.
• Allergic reactions: rash, itching, or facial swelling.

When prescribing indapamide, clinicians should consider several precautionary measures to ensure patient safety.

• Monitor electrolytes: check serum potassium and sodium regularly.
• Assess renal function: evaluate creatinine clearance before and during therapy.
• Use cautiously in gout: may increase serum uric acid.
• Avoid abrupt discontinuation: taper dose to prevent rebound hypertension.
• Store at room temperature: keep in the original container, protect from moisture.

Indapamide can interact with other medicines, altering its efficacy or safety profile.

Major Interactions (Avoid)

• Lithium: increased lithium levels may cause toxicity.
• NSAIDs: may reduce diuretic effect and impair renal function.
• Other potent diuretics: combined use can cause severe electrolyte depletion.

Moderate Interactions (Monitor Closely)

• Antidiabetic agents: enhanced hypoglycemic effect, monitor blood glucose.
• ACE inhibitors or ARBs: additive blood pressure lowering, watch for hypotension.
• Digoxin: risk of increased serum digoxin concentration due to electrolyte shifts.