Severe methemoglobinemia on reexposure to benzocaine

Chiedozie Udeh, John Bittikofer, S. T John Sum-Ping

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


We report a 65-year-old male who developed severe methemoglobinemia only on reexposure to benzocaine. The patient needed two awake fiberoptic intubations for emergency surgeries. On the second exposure, the patient was septic and malnourished, and he was taking acetaminophen. He developed a methemoglobin level of 55%. Possible reasons for the methoglobinemia on reexposure are discussed in this report.

Original languageEnglish (US)
Pages (from-to)128-130
Number of pages3
JournalJournal of Clinical Anesthesia
Issue number2
StatePublished - 2001


  • Malnutrition, sepsis, plasma protein

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine


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