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HomePharmacologyN-Acetylcysteine

N-Acetylcysteine

Antidote (Glutathione Precursor)
Drug Class
Antidote (Glutathione Precursor)
Mechanism of Action (MOA)
Replenishes hepatic glutathione, detoxifying the reactive acetaminophen metabolite NAPQI; also a mucolytic.
Clinical Notes
Antidote for acetaminophen overdose — most effective within 8 h (dose by the Rumack-Matthew nomogram). Anaphylactoid reactions with IV use.
Source
FDA label

Sources

Reviewed September 2026
  1. FDA label — FDA / DailyMed

Checked against the guideline or standard reference the exam keys to. If it has moved, use Report an error below.

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