Optimizing Pharmacologic Treatment for Neonatal Opioid Withdrawal Syndrome (OPTimize NOW): A Symptom-Based Dosing Approach

This two-period cluster crossover clinical trial will compare the length of time from birth until medically ready for discharge between infants with neonatal opioid withdrawal syndrome (NOWS) who are ≥ 36 weeks' gestation, at risk for pharmacologic treatment, and treated for NOWS with either a symptom-based dosing approach or a scheduled opioid taper approach. Each study site (i.e., cluster) will be randomized in a 1:1 allocation ratio to one of two sequences: * A three-week run-in period followed by a scheduled opioid taper approach for five months (Period 1) followed by a three-week washout period followed by a symptom-based dosing approach for five months (Period 2) * A three-week run-in period followed by a symptom-based dosing approach for five months (Period 1) followed by a three-week washout period followed by scheduled opioid taper approach for five months (Period 2) The randomization scheme will be stratified by the assessment and management approach used at each study site (i.e., Finnegan or Eat, Seep and Console).