NICU IV fentaNYL to PO morphine Calculator

Note: This calculator is intended for patients receiving IV fentaNYL for greater than 10 days and provides only a rough estimate for converting IV fentaNYL to PO morphine. There is significant individual response to various opioids as well as unpredictable or incomplete tolerance between opioids; clinical judgement must always be used when converting opioids. Neonates can be more susceptible to adverse effects of opioids therefore consider starting at a lower dose than what the conversion suggests.