Nicardipine Infusion Rate for a 23 kg Child
For a 23 kg child using a 10 mg/10 mL nicardipine ampule, start at 0.5-1 mL/hr (0.5-1 mg/hr) and titrate up to a maximum of approximately 3.5 mL/hr (3.5 mg/hr) based on blood pressure response.
Dosing Calculation
The pediatric dosing for nicardipine is 0.5-3 micrograms/kg/min based on multiple pediatric studies 1, 2, 3, 4:
- Starting dose: 0.5-1 mcg/kg/min
- Maintenance range: 1-3 mcg/kg/min
- Maximum reported: Up to 7 mcg/kg/min in some cases 5
For Your 23 kg Patient:
Starting infusion:
- 0.5 mcg/kg/min × 23 kg = 11.5 mcg/min = 0.69 mg/hr ≈ 0.7 mL/hr
- 1 mcg/kg/min × 23 kg = 23 mcg/min = 1.38 mg/hr ≈ 1.4 mL/hr
Typical maintenance range:
- 1-3 mcg/kg/min = 0.7-4.1 mL/hr (though most patients respond at lower doses)
Practical approach:
- Begin at 0.5-1 mL/hr (0.5-1 mg/hr)
- Titrate by 0.25-0.5 mL/hr every 5-15 minutes based on blood pressure response
- Target mean arterial pressure reduction of approximately 20% 2, 4
- Most pediatric patients achieve control at 1-3 mL/hr (1-3 mg/hr) 2, 3
Critical Administration Points
Central line strongly preferred - Two patients in the pediatric literature developed superficial thrombophlebitis with peripheral administration 1. No complications occurred with central line use 1.
Monitoring requirements:
- Blood pressure every 5 minutes during titration 6
- Continuous cardiac monitoring
- Target blood pressure should be reached within 2-12 minutes of adequate dosing 5
Duration considerations:
- Pediatric patients have been safely treated for 3-36 days (mean 15.9 days) 4
- Effects persist for 30-40 minutes after discontinuation 7
Safety Profile in Pediatrics
The evidence demonstrates excellent safety in children 1, 2, 3, 4:
- No hypotension reported in neonatal/pediatric studies
- No adverse cardiac effects (limited chronotropic/inotropic effects)
- No clinical side effects beyond occasional phlebitis with peripheral access
Contraindications to verify:
- Liver failure (relative contraindication) 7
- Ensure adequate intravascular volume before initiation
The adult guideline dosing of 5-15 mg/hr 7 translates to weight-based dosing that aligns with pediatric literature, confirming the safety of this approach when properly calculated for pediatric weight.