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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: Semin Perinatol. 2016 Jan 12;40(3):203–212. doi: 10.1053/j.semperi.2015.12.007

Table 1.

Commonly Used Morphine Treatment Regimens (based on Finnegan Scoring every 4 h)

Weight based Symptom based16,19 ( doses are not based on body weight) RE-specify to avoid confusion or errors

Initial dose:
  • 0.4 mg/kg/day divided every 4 h

Dose Increase:
  • 20%/day for NAS scores > 24 total on three measures, or a single score ≥12.

Weaning Dose:
  • After 48 hours of clinical stability, reduce dose by 10% every 24–48 hours

  • Reduce dose when the sum of the previous three scores is < 18 and no single score is > 8.

  • Cease therapy when dose is 0.15 mg/kg/day.

Rescue dose:
  • Administer additional morphine at previous dose for inadequate symptom between scheduled dose intervals. What dose–same dose?

Adjunctive treatment:
  • At dose of morphine 1.25 mg/kg/day initiate second medication *

Initial dose ( not based on body weight? For first score >8, re-score in one hour to verify. If still elevated:

Single NAS score Dose q4h

9–12 0.04 mg

13–16 0.08 mg

17–20 0.12 mg

21–24 0.16 mg

>25 0.20 mg

Dose Increase:

Single NAS score Increase Dose

0–9 None

9–12 0.02 mg

13–16 0.04 mg

17–20 0.06 mg

Weaning Dose:
  • After 48 hours of clinical stability, reduce dose by 0.02 mg every 24 hours if scores in general <8

  • For first elevated score >8, rescore in one hour to verify. If still elevated


Two NAS scores Increase Dose

9–12 0.01 mg

13–16 0.02 mg

17–20 0.04 mg

  • Cease therapy when dose is 0.02 mg

Adjunctive treatment:
At dose of morphine 1.6 mg/day initiate second medication*
*

phenobarbital loading dose of 20 mg/kg followed by 5 mg/kg/day OR clonidine