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n-acetylcysteine

Drug monograph

CDSCO approved
EXCRETION
not curated
INTERACTIONS
none in our sources
PREGNANCY
not curated

Mechanism

N-acetylcysteine replenishes depleted glutathione (GSH), permitting detoxification of excess N-acetyl-p-benzoquinone imine (NAPQI) before it can cause cellular damage.

Indications

Acetaminophen toxicity

Drug interactions

Chromium
Moderate
Textbook

Limits bioavailability and increases urinary excretion of chromium.

Reductants such as ascorbate, glutathione, or N-acetylcysteine, and ethylenediaminetetraacetic acid (EDTA), can be used to increase urinary excretion of chromium after high-dose exposure, particularly if given soon enough to prevent uptake into cells.

Source: G&G 14e · p1521

Other Unclassified drugs

Ask House about n-acetylcysteine

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Sources: Goodman & Gilman 14e, Harrison 22e·Verified: 2026-05-10 · House clinical team