National Toxicology Program

National Toxicology Program

Scientific Review of Chloramphenicol

CASRN 56-75-7
Status: Listed in the Report on Carcinogens (RoC)

Primary Uses or Exposures: Chloramphenicol has been used as an antibiotic since the 1950s but currently has restricted use in the United States because it causes blood dyscrasia.

Background Document

Public Comments


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