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Calcimator

Toxicology Antidote Dosing Calculator

Antidote dosing for common poisonings: acetaminophen/NAC, opioid/naloxone, benzodiazepine/flumazenil, organophosphate/atropine, digoxin/DigiFab.

Inputs

Results

Loading Dose (mg)

10,500

Maintenance / Repeat Dose (mg)3,500
Treatment Duration (hours)21
Maximum Total Dose (mg)21,000
Route (1=IV, 2=PO, 3=IM, 4=IV+IM)1
Antidote Selected (1-5)1
How to Use This Calculator
  1. Enter Patient Weight (kg).
  2. Select the Toxin Type from the dropdown (organophosphate, opioid, acetaminophen, TCA, benzodiazepine, etc.).
  3. Review Loading Dose (mg), Maintenance/Repeat Dose (mg), and Treatment Duration (hours).
  4. Check Maximum Total Dose (mg) to avoid antidote toxicity.
  5. Note Route of Administration (IV, PO, IM, or IV+IM) for the selected antidote.
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