Oral Acetylcysteine 72-Hour Regimen (Label Table)

Oral acetylcysteine 72-hour regimen for acetaminophen overdose, as the label states it.

Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.

Example

Weight
75 kg
Solution strength
20% (200 mg/mL)
Time of the loading dose
2026-10-12T22:00

Result: Label row 70 to 79 kg: loading dose 11 g, then 5.5 g every 4 hours for 17 doses.

The tool opens with these values already filled in. Replace them with your own.

What you enter

  • Weight
  • Solution strength
  • Time of the loading dose (YYYY-MM-DDTHH:MM, optional)
How this is calculated

Citation

FDA label on DailyMed: Acetylcysteine Solution, USP (Hospira), Acetylcysteine as an Antidote and Dosage Guide and Preparation (140 mg/kg loading dose, then 70 mg/kg every 4 hours for 17 doses; the weight table from 20 to 109 kg). Read the source ↗

A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.

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Built by Clay Good. Source on GitHub.