Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 9/21/2025

Trimetazidine in Acute Coronary Syndrome

Guideline Recommendations

  • The European Society of Cardiology (ESC) does not recommend trimetazidine for routine use in acute coronary syndrome (ACS) management, as stated in the 2011 and 2015 ESC guidelines 1, 2
  • The 2024 ESC Guidelines for Chronic Coronary Syndromes have downgraded trimetazidine to a Class IIb recommendation as add-on therapy for chronic stable angina, only when symptoms are inadequately controlled on beta-blockers and/or calcium channel blockers 3, 4
  • Trimetazidine is explicitly positioned as a second-line agent for chronic stable angina, not for ACS, according to the 2024 ESC guidelines 4, 6

Clinical Use

  • The American College of Cardiology and European Society of Cardiology recommend focusing on guideline-directed medical therapy, including dual antiplatelet therapy, beta-blockers, ACE inhibitors/ARBs, and high-intensity statins, for patients presenting with ACS 1, 2
  • Trimetazidine may be considered as third-line add-on therapy for persistent angina in chronic coronary syndrome patients, but only after optimal first-line antianginal therapy has been tried, as per the 2024 ESC guidelines 3, 4

Special Considerations

  • Trimetazidine may be a reasonable option in chronic coronary syndrome patients with low heart rate and/or blood pressure who cannot tolerate rate-lowering or blood pressure-lowering antianginal agents, according to the 2024 ESC guidelines 6, 8