Epinephrine Dosing for Pediatric Anaphylaxis
General Guidelines
- The American Academy of Pediatrics recommends an epinephrine dose of 0.01 mg/kg up to a maximum of 0.3 mg, administered intramuscularly into the lateral thigh (vastus lateralis muscle) for pediatric anaphylaxis 1, 2, 3
Autoinjector Recommendations
- For children weighing 7.5 to 25 kg, the American Academy of Pediatrics recommends using a 0.15 mg epinephrine autoinjector 4, 5, 6
- For children weighing 25 kg or more, the American Academy of Pediatrics recommends using a 0.3 mg epinephrine autoinjector 4, 5, 7
- The transition from 0.15 mg to 0.3 mg dose should occur at approximately 25-30 kg based on pharmacokinetic studies and expert consensus 6, 8
Special Considerations
- For infants weighing less than 7.5 kg, the 0.15 mg autoinjector dose exceeds the recommended 0.01 mg/kg dose 5, 6
- Despite this limitation, most pediatricians report they would prescribe the 0.15 mg autoinjector for infants weighing 10 kg due to the challenges of accurate dosing with ampule/syringe methods 7
Cardiopulmonary Arrest
- The American Heart Association recommends an initial resuscitation dose of 0.01 mg/kg (0.1 mL/kg of 1:10,000 solution) up to a maximum of 0.3 mg, repeated every 3-5 minutes for ongoing arrest 9
- Higher subsequent doses (0.1-0.2 mg/kg) may be considered for unresponsive asystole or pulseless electrical activity 9
Administration Route
- The American Academy of Pediatrics recommends intramuscular injection into the lateral thigh (vastus lateralis) as the preferred route for first-aid treatment of anaphylaxis 1, 2
- Intravenous epinephrine should be reserved for cardiac arrest or profound hypotension unresponsive to IM epinephrine and fluid resuscitation, and requires continuous hemodynamic monitoring 10