INTRODUCTION: Approximately 83% of U.S. deliveries include pain control, with 67% incorporating epidural analgesia, and 16% utilizing narcotics. Research suggests intrapartum fentanyl predicts poor neonatal suckling, and thus impaired breastfeeding. Unclear are potential effects of other narcotics. We examined whether use of intrapartum narcotics increases risk of adverse neonatal outcomes. METHODS: Charts of patients admitted for delivery at a single academic institution were reviewed for drugs administered in the intrapartum period and neonatal outcomes. Institutional review board approval was obtained with a waiver of informed consent. Data were summarized using logistic regression, controlling for confounders. RESULTS: Of the 519 participants, 286 (55.1%) received at least one narcotic in the intrapartum period. Compared to the control group, those who received narcotics were significantly younger, had greater pregnancy weight gain, were less likely to deliver via cesarean section, were less likely to have had preeclampsia, had greater gestational age at delivery, and gave birth to babies that weighed more. Tylenol III predicted a three times higher adjusted risk of neonatal intensive care unit admission (odds ratio [OR] 3.03 [1.06–8.62]). Norco predicted greater than 2.5 times higher risk of 1-minute (OR 2.66 [1.26–5.60]) and 5-minute Apgar scores below 7 (OR 2.61 [1.08–6.31]), and requiring oxygen at birth (OR 2.68 [1.21–5.93]). Morphine predicted a three times higher risk of 5-minute Apgar scores below 7 (OR 3.00 [1.26–7.17]). When adjusting for receipt of epidural analgesia, epidural did not significantly increase risk of any study outcomes. CONCLUSION: Adverse neonatal outcomes were observed following intrapartum Norco, morphine, and Tylenol III, and were unrelated to use of epidural analgesia. Findings support growing evidence that intrapartum narcotics pose risk to neonates, and further research is needed to elucidate potential longer-term effects.