Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/25/2025

Isosorbide Dinitrate in Heart Failure Management

Clinical Applications

  • The American College of Cardiology recommends the use of isosorbide dinitrate in combination with hydralazine for heart failure management, particularly in specific patient populations 1, 2
  • The combination of isosorbide dinitrate and hydralazine has shown efficacy in African American patients with heart failure with reduced ejection fraction (HFrEF) 2, 4
  • For non-African American patients with HFrEF who cannot tolerate ACE inhibitors or ARBs, the hydralazine-isosorbide dinitrate combination may be considered as an alternative therapy 5, 3

Side Effects and Tolerance

  • Common side effects of isosorbide dinitrate include headache, dizziness, and gastrointestinal complaints, which are usually mild to moderate and improve with continued therapy 3

Comparison with Other Nitrates

  • Isosorbide dinitrate differs from nitroglycerin in its duration of action and pharmacokinetics 6

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