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  • Title: Myocardial infarction temporally related to ephedra--a possible role for the coronary microcirculation.
    Author: Rezkalla SH, Mesa J, Sharma P, Kloner RA.
    Journal: WMJ; 2002; 101(7):64-6. PubMed ID: 12426924.
    Abstract:
    Myocardial infarction has been reported with ephedrine and pseudoephedrine use. It has been suggested that these agents may induce coronary artery spasm, hypercoagulable states, or oxygen demand imbalance. We report a 25-year-old male with myocardial infarction after receiving a diet pill containing ephedra. Coronary angiography revealed normal coronary arteries with very slow flow, suggestive of microcirculation abnormalities. The flow responded promptly to intracoronary verapamil.
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