{Reference Type}: Journal Article {Title}: Retrospective study investigating naloxone prescribing and cost in US Medicaid and Medicare patients. {Author}: Manko CD;Ahmed MS;Harrison LR;Kodavatiganti SA;Lugo N;Konadu JO;Khan F;Massari CA;Sealey TK;Addison ME;Mbah CN;McCall KL;Fraiman JB;Piper BJ; {Journal}: BMJ Open {Volume}: 14 {Issue}: 5 {Year}: 2024 May 1 {Factor}: 3.006 {DOI}: 10.1136/bmjopen-2023-078592 {Abstract}: BACKGROUND: Opioid overdoses in the USA have increased to unprecedented levels. Administration of the opioid antagonist naloxone can prevent overdoses.
OBJECTIVE: This study was conducted to reveal the pharmacoepidemiologic patterns in naloxone prescribing to Medicaid patients from 2018 to 2021 as well as Medicare in 2019.
METHODS: Observational pharmacoepidemiologic study SETTING: US Medicare and Medicaid naloxone claims INTERVENTION: The Medicaid State Drug Utilisation Data File was utilised to extract information on the number of prescriptions and the amount prescribed of naloxone at a national and state level. The Medicare Provider Utilisation and Payment was also utilised to analyse prescription data from 2019.
METHODS: States with naloxone prescription rates that were outliers of quartile analysis were noted.
RESULTS: The number of generic naloxone prescriptions per 100 000 Medicaid enrollees decreased by 5.3%, whereas brand naloxone prescriptions increased by 245.1% from 2018 to 2021. There was a 33.1-fold difference in prescriptions between the highest (New Mexico=1809.5) and lowest (South Dakota=54.6) states in 2019. Medicare saw a 30.4-fold difference in prescriptions between the highest (New Mexico) and lowest states (also South Dakota) after correcting per 100 000 enrollees.
CONCLUSIONS: This pronounced increase in the number of naloxone prescriptions to Medicaid patients from 2018 to 2021 indicates a national response to this widespread public health emergency. Further research into the origins of the pronounced state-level disparities is warranted.