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Title: Pronounced declines in dispensed licit fentanyl, but not fentanyl derivatives.

Authors: Stemrich, Raymond A; Weber, Jordan V; McCall, Kenneth L; Piper, Brian J

Published In Res Social Adm Pharm, (2022 06)

Abstract: BACKGROUND: Fentanyl and its derivatives are highly utilized opioid-based analgesics provided to patients in various formulations, but this agent has also been implicated in many overdoses when misused. The evolving opioid crisis has increased pressure on the healthcare industry to monitor opioid prescriptions. Different policies and procedures implemented to contain the crisis have impacted the utilization of some opioids. OBJECTIVE: A prior report identified three-fold differences between states in fentanyl use. This study explored fentanyl distribution patterns from 2010 to 2019. METHODS: The amount of fentanyl base distributed from 2010 to 2019 was obtained from the Drug Enforcement Administration. Sufentanil, alfentanil, and remifentanil were also analyzed from 2010 to 2017, the most recent year reported. Prescriptions, units, and reimbursement for 2010 and 2019 were obtained from Medicaid and fentanyl prescriber specialty from Medicare Part D. RESULTS: There was a 65.5% decrease in the overall milligrams of fentanyl per person distributed corrected for population. Ohio had the greatest decrease (-79.3%), while Mississippi saw the smallest (-44.5%). There was a 6.8-fold regional difference in the quantity of fentanyl distributed per person in 2010 from hospitals (South Dakota = 775.2, Alabama = 113.2 μg/person). The regional difference was also sizeable for pharmacies (6.2-fold, Mississippi = 1,025.3, Washington DC = 165.6). Medicaid reimbursement in 2019 was $165 million for over eight hundred-thousand prescriptions with the majority for generic (99.7%) and injectable (77.6%) formulations. Interventional pain management and anesthesia were over-represented, and hematology/oncology significantly under-represented for fentanyl prescriptions in Medicare. CONCLUSION: The distribution of fentanyl-based substances decreased, although not uniformly, in the US over the last decade. Additionally, the most prescribed formulations of fentanyl have transitioned away from transdermal, potentially in an effort to regulate its availability. The considerable state-level disparities observed for fentanyl distribution from pharmacies and hospitals warrant further attention as there may be regional practices which are incongruent with evidence-based medicine.

PubMed ID: 34419378 Exiting the NIEHS site

MeSH Terms: Aged; Alfentanil; Analgesics, Opioid*/therapeutic use; Fentanyl*; Humans; Medicare; Sufentanil; United States

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