Myth of the Month

Nitroglycerin’s safety and value examined


 

Take-home messages

  • Short acting nitroglycerin may not be a contraindication for phosphodiesterase inhibitor use.
  • More data are still needed.
  • Nitroglycerin response does not help distinguish chest pain from CAD from noncardiac causes.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. He is a member of the editorial advisory board of Internal Medicine News. Dr. Paauw has no conflicts to disclose. Contact him at imnews@mdedge.com.

References

1. Schwartz BG, Kloner RA. Drug interactions with phosphodiesterase-5 inhibitors used for the treatment of erectile dysfunction or pulmonary hypertension. Circulation. 2010;122:88-95.

2. Kloner RA, Zusman RM. Cardiovascular effects of sildenafil citrate and recommendations for its use. Am J Cardiol. 1999 Sep 9;84(5B):11N-17N.

3. Parker JD et al. Safety of intravenous nitroglycerin after administration of sildenafil citrate to men with coronary artery disease: A double-blind, placebo-controlled, randomized, crossover trial. Crit Care Med. 2007;35:1863-8.

4. Holt A et al. Adverse events associated with coprescription of phosphodiesterase type inhibitors and oral organic nitrates in male patients with ischemic heart disease. Ann Intern Med. 2022 Jun;175(6):774-82.

5. Shry EA et al. Usefulness of the response to sublingual nitroglycerin as a predictor of ischemic chest pain in the emergency department. Am J Cardiol. 2002 Dec 1;90(11):1264-6.

6. Diercks DB et al. Changes in the numeric descriptive scale for pain after sublingual nitroglycerin do not predict cardiac etiology of chest pain. Ann Emerg Med. 2005 Jun;45(6):581-5.

7. His DH et al. Headache response to glyceryl trinitrate in patients with and without obstructive coronary artery disease. Heart 2005;91:1164-6.

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