• Christine Ramdin, George Mina, Lewis S Nelson, and Maryann Mazer-Amirshahi.
• Department of Emergency Medicine, Rutgers New Jersey Medical School, Newark, New Jersey.
• J Emerg Med. 2024 Jan 1; 66 (1): e1e9e1-e9.

BackgroundIn 2016, the U.S. Food and Drug Administration (FDA) issued its strongest safety warning ("Black Box Warning") for concomitant use of prescription opioids and benzodiazepines due to overdose deaths.ObjectiveOur objective was to look at trends of opioid and benzodiazepine co-prescribing in the emergency department (ED) using national data, because recent data are sparse.MethodsThis is a retrospective review of data collected by the National Hospital Ambulatory Medical Care Survey between 2012 and 2019. Our primary outcome was to determine whether there was a trend in ED visits when opioids and benzodiazepines were co-prescribed at discharge. We also compared the rate of visits when co-prescribing occurred before (2012-2015) and after (2017-2019) the 2016 FDA warning. We identified commonly co-prescribed benzodiazepines and opioids, and the rate of naloxone co-prescribing. We used descriptive statistics and bivariate tests to describe data.ResultsBetween 2012 and 2019, there were 4,489,613 ED visits (0.41% of ED visits) when benzodiazepines and opioids were co-prescribed. There was no trend in the rate of co-prescribing overall, but a decrease in visits after the 2016 FDA Black Box Warning (2012-2015: mean 0.49%; 2017-2019: mean 0.29%; p < 0.0001). There were 7980 ED visits (0.18%) when naloxone was co-prescribed for these visits within this time frame and an increase over time (p < 0.001).ConclusionsOur study found that between 2012 and 2019, there was no overall reduction in co-prescribing of opioids and benzodiazepines across EDs nationwide, but a decrease after the 2016 Black Box Warning.Copyright © 2023 Elsevier Inc. All rights reserved.

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