What are the treatment options for allergic reactions of local anesthetic toxicity?

Updated: Jan 09, 2019
  • Author: Raffi Kapitanyan, MD; Chief Editor: David Vearrier, MD, MPH  more...
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Answer

Infrequently, local anesthetics may provoke an allergic or hematologic reaction. Allergic reactions can be treated with diphenhydramine or, for more serious reactions, epinephrine or corticosteroids. Methemoglobinemia should initially be treated symptomatically. Subsequent treatment is guided by blood levels of methemoglobin; methylene blue and hyperbaric oxygen may be required in severe cases. See Methemoglobinemia for specific treatment.


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