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Emergency Preparedness and Response

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Blister Agents/Vesicants

Specific Chemical Agents

The following chemicals were chosen to represent the entire class of vesicants. Vesicants include distilled mustard (HD), mustard gas (H), mustard/lewisite, mustard/T, nitrogen mustard, sesqui mustard, and sulfur mustard.

Lewisite (L, L-1, L-2, L-3)
Nitrogen mustard (HN-1, HN-2, HN-3)
Phosgene oxime (CX)
Sulfur mustard (H) (mustard gas)

Info for Clinicians

Case Definition: Vesicant (Mustards, Dimethyl Sulfate, and Lewisite)
Includes clinical description, lab criteria for diagnosis, & case classification.
Toxic Syndrome Description: Vesicant/Blister Agent Poisoning
Includes comprehensive signs & symptoms & differential diagnosis.

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Page last reviewed: April 4, 2018
Page last updated: May 6, 2016
Content source: National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)
Maintained By:
- Center for Preparedness and Response (CPR)

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