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Record W4416817547 · doi:10.1177/29767342251392342

Expanding Access to Buprenorphine and Methadone: Global Perspectives and Policy Recommendations

2025· article· en· W4416817547 on OpenAlexaboutno aff
Julio C. Nunes, Gabriel P. A. Costa, João P. De Aquino, Bryon Adinoff

Bibliographic record

VenueSubstance Use &amp Addiction Journal · 2025
Typearticle
Languageen
FieldMedicine
TopicOpioid Use Disorder Treatment
Canadian institutionsnot available
FundersNational Institute on Drug AbuseNational Institute of Mental Health
KeywordsBuprenorphinePublic healthMainstreamHealth careHealth policyPublic policy

Abstract

fetched live from OpenAlex

BACKGROUND: Opioid-related deaths remain a major cause of preventable mortality, but access to medications for opioid use disorder (MOUD) such as methadone and buprenorphine remains restricted globally. This review compares national MOUD policies across 8 countries (the United States, Canada, the United Kingdom, Russia, France, Iran, Australia, and Portugal) to examine how regulation may affect treatment coverage, mortality, and system responsiveness. Secondary aims include identifying barriers to MOUD access and illustrating potential lives saved and economic gains from expanded U.S. coverage. METHODS: A targeted narrative review of peer-reviewed and policy literature characterized methadone and buprenorphine regulations, prescriber eligibility, dispensing models, and coverage across countries, with opioid-related mortality data drawn from the Global Burden of Disease Study 2021. A U.S. modeling analysis estimated overdose deaths averted and economic savings at increasing levels of MOUD coverage using national prevalence data, meta-analytic mortality reductions from treatment, and Centers for Disease Control and Prevention economic valuations adjusted for treatment costs. RESULTS: Regulatory bottlenecks including daily supervised dosing, restricted community prescribing, and stigmatizing drug scheduling limit MOUD access. International models demonstrate feasible alternatives: in the U.K. and Australia, community pharmacy dispensing supports reach without compromising safety; in France, liberal buprenorphine prescribing through primary care facilitated rapid national scale-up; in Portugal and Iran, decriminalization and expansion of flexible, low-threshold public health-integrated models coincided with reductions in overdose deaths. In contrast, Russia's prohibition underscores the harms of abstinence-only policies. Increasing U.S. MOUD coverage to 25% could prevent about 3500 overdose deaths annually, and universal coverage could avert over 41 000, yielding $38 to $444 billion in net economic savings. CONCLUSIONS: International evidence suggests that regulatory reform and integration of MOUD into mainstream healthcare can expand access and reduce mortality. Aligning policies with these lessons, by decentralizing methadone delivery, modernizing buprenorphine scheduling, and embedding MOUD within public health systems, represents both a public health and economic imperative.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.133
Threshold uncertainty score0.647

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.033
GPT teacher head0.370
Teacher spread0.337 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations2
Published2025
Admission routes1
Has abstractyes

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