A groundbreaking behavioral intervention in emergency departments (EDs) has created a remarkable shift in the prescription patterns of naltrexone, a medication known for its ability to mitigate cravings and reduce alcohol use among individuals diagnosed with alcohol use disorder (AUD). Recent research from the Perelman School of Medicine at the University of Pennsylvania demonstrates that relatively simple “nudging” techniques—strategically embedded prompts designed to influence physician behavior without limiting choices—can substantially increase the likelihood that eligible patients leave the ED with a prescription for this effective pharmacotherapy.
Despite naltrexone’s proven efficacy, it remains vastly underprescribed in clinical practice, especially in acute care settings. A 2023 national survey revealed that a mere 1.9 percent of individuals with AUD received medications to address their condition, while only about 0.5 percent of patients with an alcohol use diagnosis were initiated on naltrexone from emergency departments. This stark treatment gap underscores a systemic failure fueled by stigma, limited awareness, and operational barriers that hinder optimal delivery of care. However, mounting evidence supports naltrexone’s impact: clinical trials report that roughly one in eleven patients achieves abstinence from drinking, and many experience a decrease in heavy drinking days by one to two days per month.
The University of Pennsylvania’s Nudge Unit, a behavioral science initiative dedicated to enhancing clinical decision-making, designed and implemented two successive phases of electronic health record (EHR) interventions intended to boost clinician prescribing behavior. The first phase, rolled out in March 2024, introduced a standardized clinical workflow alongside a discharge order set prepopulated with naltrexone prescriptions. This structured approach served to streamline provider actions, reducing friction and facilitating pharmacological intervention for eligible patients without demanding excessive cognitive effort.
Three months later, in August 2024, a second layer of intervention was integrated into ED triage procedures. Nurses incorporated standardized alcohol screening questions into routine intake assessments, and clinicians were alerted via non-intrusive banner notifications within the EHR when patients screened positive for harmful drinking patterns. Physicians could then swiftly access the protocolized treatment steps and initiate naltrexone with a single click. This design was carefully calibrated to compensate for “alert fatigue,” a well-recognized phenomenon where overexposure to electronic prompts diminishes clinical responsiveness. The program emphasized efficiency and minimized disruption to existing workflows.
Data comparing four hospitals within the University of Pennsylvania Health System where these nudges were implemented to two hospitals serving as controls revealed striking outcomes. Prior to intervention, only 0.2 percent of patients with alcohol-related diagnoses at these hospitals received naltrexone prescriptions. Following Phase 1 implementation, this figure surged to 2.7 percent, and after Phase 2, it further climbed to 3.2 percent, equating to nearly 100 patients treated with naltrexone in just over a year. In contrast, control hospitals demonstrated negligible change, maintaining prescription rates near zero. Statistically, these interventions corresponded with a twelvefold increase in naltrexone prescribing after Phase 1 and a fifteenfold boost post-Phase 2.
This marked increase is clinically significant, considering that before the intervention, only a small cadre of specialist providers routinely prescribed naltrexone in the emergency context—averaging one patient every few months. The nudge strategy galvanized a broader range of clinicians, expanding prescribing responsibility to 46 distinct providers, and resulting in an average of two patients per week receiving medication at the nudge-equipped sites. Such diffusion of innovation within acute care settings parallels principles from behavioral economics where well-timed and thoughtfully designed cues can reshape ingrained practices.
The potential impact of this research extends beyond institutional borders. The Penn Medicine team has already begun disseminating these interventions to other emergency departments within their health network, and collaborations have extended to resource-limited environments. Notably, emergency departments in Philadelphia’s Puentes de Salud clinic and even international settings such as hospitals in Bhutan are adopting the nudge techniques, reflecting the scalable nature of these behavioral innovations.
From a public health perspective, integrating effective, low-cost pharmacological treatments like naltrexone into standard emergency care pathways represents a transformative opportunity. Given that approximately one in ten Americans struggles with alcohol use disorder, increasing access to evidence-based medication can significantly reduce morbidity, mortality, and health system burden associated with excessive alcohol consumption. The nudge approach also offers a replicable model for enhancing care quality in other underutilized therapeutic domains where similar barriers prevail.
This research was conducted with a rigor characteristic of randomized controlled trials, ensuring that observed improvements are attributable to the interventions rather than external trends or confounders. Furthermore, the interdisciplinary collaboration between behavioral scientists, emergency medicine clinicians, and informatics experts underscores the power of integrated team science in addressing complex healthcare challenges.
Future directions highlighted by the study’s authors include exploring the expansion of alcohol misuse screening and naltrexone prescribing into primary care settings, which represent critical touchpoints for long-term management. Additionally, refining and optimizing electronic alert systems to balance urgency, clinical relevance, and workflow integration remains a priority to sustain healthcare provider engagement.
This innovative use of behavioral nudges to improve medication prescribing illuminates a path forward for bridging the treatment gap in alcohol use disorders. By leveraging modest modifications within existing clinical infrastructures, healthcare systems can facilitate access to life-changing medications and ultimately improve patient outcomes on a population level.
Subject of Research: People
Article Title: Information not provided
News Publication Date: Information not provided
Web References:
Penn Medicine Nudge Unit
2023 National Study on AUD Medication
References:
DOI: 10.1016/j.annemergmed.2026.03.021
Keywords: Substance abuse, Alcoholism, Health care
Tags: behavioral interventions in acute care settingsbehavioral nudge in emergency departmentsclinical impact of naltrexoneemergency department interventions for AUDevidence-based strategies for AUD medicationimproving pharmacotherapy uptake for alcohol useincreasing naltrexone prescriptionsmedication for alcohol use disorderoperational barriers in AUD careovercoming stigma in AUD treatmentreducing alcohol cravings with medicationunderprescription of AUD medications
