Spironolactone and Trimetazidine Dosage Guidelines

Initial Dosing and Titration

• The European Society of Cardiology recommends starting spironolactone at 25 mg once daily in patients with heart failure and serum potassium ≤5.0 mEq/L and eGFR >50 mL/min/1.73 m² 1, 2
• For cirrhotic ascites, the American Association for the Study of Liver Diseases suggests starting spironolactone at 100 mg daily, with a range of 25-200 mg daily 4, 5
• The European Society of Cardiology advises considering dose increase after 4-8 weeks if tolerated, with a target dose of 50 mg once daily or maximum tolerated dose in heart failure patients 1, 2, 3

Monitoring and Dose Adjustment

• The European Society of Cardiology recommends checking electrolytes and renal function at 1 and 4 weeks after starting treatment, and at 1 and 4 weeks after each dose increase 1, 2, 3
• For hyperkalemia management, the European Society of Cardiology suggests halving the dose if potassium >5.5 mmol/L, and stopping spironolactone immediately if potassium ≥6.0 mmol/L 1, 2, 3, 7, 8
• The American Association for the Study of Liver Diseases recommends reducing dose if patient develops hyponatremia <125 mmol/L 6

Critical Safety Considerations

• The European Society of Cardiology advises avoiding combination of spironolactone with both ACE inhibitors AND ARBs simultaneously 1, 2
• The European Society of Cardiology recommends not using spironolactone without adequate baseline renal function and normal potassium 1, 2, 3, 7, 8
• The American Association for the Study of Liver Diseases suggests not using spironolactone in patients with hepatic encephalopathy, severe hyponatremia (<120 mmol/L despite water restriction), or acute kidney injury 6