Drug diversion represents the unauthorized distribution or usage of prescription medications — most commonly analgesics and psychoactive drugs — in ways that were not intended by the prescriber. Common examples include theft from individuals or institutions, fabricating symptoms to obtain medications, and altering prescription documents. This issue significantly affects both the general population and the healthcare sector.
Within the broader population, thousands annually obtain prescription medications through unauthorized means. Typical acquisition routes involve taking medications from family members or friends, inventing symptoms, engaging in "doctor shopping," or purchasing from illegal dealers and online sources. Drug diversion significantly contributes to the opioid crisis: 44 individuals died every day in 2020 from prescription drug overdoses, with many deaths connected to medications obtained through unauthorized channels.
Healthcare workers face distinct challenges and opportunities for diversion. Beyond methods available to the general public, they have direct access to institutional medication supplies and patient medications. Between 2018 and 2021, 8% of medication transactions in U.S. hospitals displayed suspicious characteristics suggesting unauthorized use. Particularly problematic controlled substances include fentanyl, midazolam, and morphine.
A particularly dangerous practice involves replacement diversion — stealing medications and substituting saline. A 2022 case involved a nurse extracting analgesics from surgical vials and replacing them with saline, leaving patients inadequately medicated. Healthcare workers who self-inject or tamper with patient prescriptions also create serious bloodborne pathogen exposure hazards. Six disease outbreak clusters occurred between 2000 and 2013 attributable to healthcare workers tampering with patient syringes.
Prevention strategies for the general population include comprehensive patient evaluation, use of state prescription drug monitoring programs, substance abuse screening tools, and limiting controlled substance prescriptions when equally effective alternatives exist. Prescriber education on safe prescribing practices and patient counseling on safe storage and disposal of unused medications are also critical components.
Healthcare facilities should implement robust controls including automatic dispensing cabinets, security cameras, inventory monitoring protocols, and proper disposal procedures. Recognizing suspicious patient behaviors — unusual symptom descriptions, requests for specific medications — and suspicious worker behaviors — undocumented waste, supplemental prescription requests, behavioral changes — remains essential for early detection and intervention.