Epinephrine Pediatric Dosing
Calculate the correct epinephrine dose, volume, and auto-injector selection for pediatric emergencies.
0.01 mg/kg IM (anterolateral thigh) every 5–15 min as needed; max 0.5 mg per dose.
Calculated Dose
Dose
0.20 mg
Volume: 0.20 mL of 1 mg/mL solution.
Weight & notes
Weight: 20.00 kg • Weight-based raw dose 0.20 mg (capped at 0.5 mg).
Auto-injector guidance: EpiPen Jr®/0.15 mg auto-injector recommended for 15–30 kg.
How to Use This Calculator
Identify the emergency scenario
Choose anaphylaxis (IM) or cardiac arrest (IV/IO) to apply the correct dilution.
Enter accurate weight
Use actual or best-estimate weight; epinephrine is dose-sensitive.
Draw up or prepare auto-injector
Convert mg to mL and prepare syringes or auto-injectors accordingly.
Formula
Dose (mg) = weight (kg) × 0.01 mg/kg (both scenarios).
Based on AHA PALS guidelines and World Allergy Organization recommendations for pediatric anaphylaxis.
Frequently Asked Questions
Why different concentrations?
Intramuscular uses 1 mg/mL (1:1000). Intravenous/IO uses 0.1 mg/mL (1:10,000) to avoid dosing errors.
When should epinephrine be repeated?
Anaphylaxis: every 5–15 minutes as needed. Cardiac arrest: every 3–5 minutes during CPR.
Can I give epinephrine via nebulizer?
Nebulized racemic epinephrine is used for croup, not anaphylaxis. Dose: 0.5 mL of 2.25% in 3 mL NS.
How do I store epinephrine?
Protect from light, store at room temperature, discard if discolored or expired.
What if IV access is not available?
Use IM route for anaphylaxis; for arrest, use IO access or endotracheal dosing per PALS guidelines.