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- Joseph S Langferd and Shahid Sheikh.
- Department of Emergency Medicine University of Louisville, Louisville, KY. USA.
- Ann Emerg Med. 1999 Oct 1; 34 (4 Pt 1): 538-541.
AbstractWe describe the case of an adolescent girl who received high-dose metoclopramide in combination with oral N-acetylcysteine therapy for acute acetaminophen toxicity. Whole blood-sample analysis for abnormal hemoglobin pigments established the diagnosis of sulfhemoglobinemia. Metoclopramide has been shown to cause sulfhemoglobinemia, particularly when used in repeated high doses. Although N-acetylcysteine alone has not been associated as the cause, we suggest that sulfhemoglobinemia is a potential complication in patients treated with metoclopramide for the nausea that often accompanies oral N-acetylcysteine therapy for acetaminophen toxicity. Cyanosis without respiratory distress should suggest this diagnosis.
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