Evidence map›Paper›PMID 38744553›Full record

ArticleThe International journal on drug policy2025

National and regional trends in fentanyl seizures in the United States, 2017-2023.

Joseph J Palamar, Nicole Fitzgerald, Thomas H Carr, Linda B Cottler, Daniel Ciccarone

Abstract read
In one paragraph

Article in The International journal on drug policy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed.

  1. Article
  2. Stability and turbulence in illegal drug markets.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Spatio-Temporal Modeling for Multi-County Opioid Overdose Surveillance: A Unified Graph Convolutional Framework.AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science · 2026
    Article
  11. The Donovan Memorial Lecture: 'Fentanyl-Plus': A New Era of Fentanyl Polydrug Combinations in the North American Overdose Crisis.Journal of medical toxicology : official journal of the American College of Medical Toxicology · 2026
    Article
  12. Article
  13. A Drd1-cre mouse line with nucleus accumbens gene dysregulation exhibits blunted fentanyl seeking.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Nonfatal pediatric fentanyl exposures reported to US poison centers, 2015-2023.The American journal of drug and alcohol abuse · 2025
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Joseph J PalamarNYU School of Medicine, Department of Population Health, New York, NY. Electronic address: joseph.palamar@nyulangone.org.
Nicole FitzgeraldUniversity of Florida, Department of Epidemiology, College of Public Health and Health Professions, College of Medicine, United States.
Thomas H CarrOffice of National Drug Control Policy, Washington-Baltimore High Intensity Drug Trafficking Areas Program, United States; College of Public Affairs, Center for Drug Policy and Prevention, University of Baltimore, United States.
Linda B CottlerUniversity of Florida, Department of Epidemiology, College of Public Health and Health Professions, College of Medicine, United States.
Daniel CiccaroneUniversity of California, San Francisco, Department of Family and Community Medicine, San Francisco, CA.

Funding

National Drug Early Warning System (NDEWS) COVID-19 SupplementU01DA051126 · NIDA · UNIVERSITY OF FLORIDA · PI Linda B. Cottler, Joseph J Palamar · 2020 to 2026
$6.3M
UF Substance Abuse Training Center in Public HealthT32DA035167 · NIDA · UNIVERSITY OF FLORIDA · PI Linda B. Cottler · 2014 to 2026
$4.8M
Synthetics in Combination (SYNC)R01DA054190 · NIDA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI DANIEL H CICCARONE · 2021 to 2026
$4.3M
New psychoactive substance exposure among NYC nightclub and festival attendeesR01DA057289 · NIDA · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI Joseph J Palamar · 2023 to 2026
$2.7M
NIDA NIH HHS R01 DA054190NIDA NIH HHS R01 DA057289NIDA NIH HHS T32 DA035167NIDA NIH HHS U01 DA051126
6 · The paper itself

Abstract

backgroundRates of synthetic opioid-related deaths over time and across regions have been compared within the US, but other indicator data could help inform prevention and harm reduction as well. We compared regional trends in fentanyl seizures to examine potential shifts in illicit fentanyl availability.

methodsAnnual trends in fentanyl seizures were examined using data from High Intensity Drug Trafficking Areas for the US overall and by region from 2017 through 2023. Multiple measures included the number of seizures, the number of powder seizures, the number of pill seizures, the total weight of seizures, the number of pills seized, and the percentage of the number of pill seizures relative to the number of total seizures.

resultsThe percentage of seizures in pill form in the US increased from 10.3 % in 2017 to 49.0 % in 2023 (adjusted annual percentage change [AAPC]=25.2, 95 % CI: 17.6, 33.2), with 115.6 million individual pills seized in 2023. Pill weight related to total seizure weight also increased from 0.4 % to 54.5 % (AAPC=112.6, 95 % CI: 78.6, 153.2). In 2023, the plurality of seizures was in the West, in seven out of eight of our measures, with 77.8 % of seizures in the West being in pill form. Although the Midwest had lower prevalence of seizures than the West, there were notable increases in the Midwest in the number of pill seizures (AAPC=142.2, 95 % CI: 91.9, 205.8) and number of pills seized (AAPC=421.0, 95 % CI: 272.7, 628.4). Total weight of fentanyl seized increased the most in the West (AAPC=84.6, 95 % CI: 72.3, 97.8).

conclusionsThe number and size of fentanyl seizures is increasing in the US, with the majority of seizures, especially in pill form, in the West. Continued monitoring of regional shifts in the fentanyl supply can help inform targeted prevention and public health response.

Indexed as

Analgesics, OpioidDrug TraffickingFentanylIllicit DrugsHumansUnited StatesAnalgesics, OpioidFentanylIllicit DrugsAnnual trendsDrug seizuresDrug surveillanceFentanyl

Identifiers

PMID38744553
PMCPMC11531607

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.