Benzocaine-induced methemoglobinemia in two patients: interdisciplinary collaboration, management, and near misses.

Abstract:

:Methemoglobin, a form of hemoglobin that does not bind oxygen, is produced when iron in red blood cells is oxidized from the ferrous state to the ferric state. Methemoglobinemia develops in the presence of oxidizing agents, such as benzocaine-containing topical anesthetic sprays, and it is characterized by cyanosis. If untreated, methemoglobinemia may prove lethal. We describe two patients who developed methemoglobinemia after they were administered benzocaine-containing topical anesthetic sprays. Using the Naranjo adverse drug reaction probability scale, the relationship between the administration of the benzocaine-containing spray and the development of methemoglobinemia was probable (score of 7) in both patients. Collaboration among health care providers is necessary to efficiently recognize, treat, and manage this condition.

journal_name

Pharmacotherapy

journal_title

Pharmacotherapy

authors

Throm MJ,Stevens MD,Hansen C

doi

10.1592/phco.27.8.1206

subject

Has Abstract

pub_date

2007-08-01 00:00:00

pages

1206-14

issue

8

eissn

0277-0008

issn

1875-9114

journal_volume

27

pub_type

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