Indap (Indapamide)

• Indapamide is a thiazide‑like diuretic that acts on fluid balance and vascular resistance.
• Hypertension: lowers systemic blood pressure and reduces cardiovascular risk.
• Edema associated with congestive heart failure: promotes fluid excretion to relieve swelling.
• High blood pressure in chronic kidney disease: helps control hypertension while preserving renal function.

• Indapamide inhibits the Na⁺/Cl⁻ symporter in the distal convoluted tubule, reducing sodium and chloride reabsorption. This induces natriuresis and diuresis, leading to a decrease in plasma volume and peripheral vascular resistance, which together lower arterial blood pressure.

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

Common Side Effects

• Increased urination
• Dizziness or light‑headedness
• Electrolyte imbalance (especially low potassium)
• Headache
• Muscle cramps
• Fatigue

Serious or Rare Side Effects

• Severe dehydration
• Acute kidney injury
• Hyponatremia
• Hyperuricemia leading to gout attacks
• Allergic reactions such as rash or angioedema
• Blood dyscrasias (e.g., leukopenia)

• When prescribing Indapamide, clinicians should consider several safety measures to minimize risk.
• Assess renal function: evaluate baseline creatinine and eGFR before initiation.
• Monitor electrolytes: check serum potassium and sodium periodically.
• Avoid in severe hepatic impairment: use with caution or not at all.
• Consider drug interactions: review concomitant medications that affect potassium or renal function.
• Pregnancy and lactation: use only if benefits outweigh risks, as safety data are limited.
• Store at ambient temperature: keep below 25°C, retain in original container, protect from moisture.

Indapamide can influence the pharmacokinetics or pharmacodynamics of several co‑administered agents.

Major Interactions (Avoid)

• Lithium: may increase lithium levels and toxicity.
• NSAIDs: can reduce diuretic efficacy and impair renal function.
• ACE inhibitors or ARBs: heightened risk of potassium loss and renal impairment.
• Other thiazide diuretics: additive electrolyte disturbances.
• High‑dose potassium supplements: risk of hyperkalemia.

Moderate Interactions (Monitor Closely)

• Antidiabetic drugs: diuretic may affect glucose control.
• Other antihypertensives: additive blood pressure lowering.
• Corticosteroids: may increase sodium loss.
• Digoxin: altered serum levels due to electrolyte changes.
• Warfarin: possible alteration in INR.