Why is N -acetylcysteine (NAC) beneficial in late presentations of acetaminophen toxicity/poisoning?

Updated: Jan 17, 2020
  • Author: Susan E Farrell, MD; Chief Editor: Michael A Miller, MD  more...
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The beneficial effect of NAC in late treatment, when liver damage has already occurred, suggests that additional local hepatic repair mechanisms may be result from NAC administration. Proposed mechanisms of NAC in this setting include an antioxidant effect, decreased neutrophil accumulation, and improved microcirculatory blood flow supporting increased oxygen delivery to hepatic tissue.

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