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News Release

Monday, May 13, 2024

Over 115 million pills containing illicit fentanyl seized by law enforcement in 2023

NIH-supported study highlights increasingly dangerous illicit drug supply, risk of pills not coming from a pharmacy.

Graph shows the number of pills containing fentanyl seized by law enforcement in the United States, 2017-2023.NIDA

Law enforcement seizures of illicit fentanyl increased dramatically in number and size between 2017 to 2023 in the U.S., especially in pill form, according to funded by the �鶹��ýӳ��’s (NIH) National Institute on Drug Abuse (NIDA). The number of individual pills containing fentanyl seized by law enforcement was 2,300 times greater in 2023 compared to 2017, with 115,562,603 pills seized in 2023 vs. 49,657 in 2017. The proportion of fentanyl pill seizures to the total number of fentanyl seizures more than quadrupled, with pills representing 49% of illicit fentanyl seizures in 2023 compared to 10% in 2017. The study also found a significant increase in the number and weight of fentanyl-containing powder seizures during this time.

“Fentanyl has continued to infiltrate the drug supply in communities across the United States and it is a very dangerous time to use drugs, even just occasionally,” said NIDA Director Nora D. Volkow, M.D. “Illicit pills are made to look identical to real prescription pills, but can actually contain fentanyl. It is urgently important that people know that any pills given to someone by a friend, purchased on social media, or received from any source other than a pharmacy could be potentially deadly – even after a single ingestion.”

Although fentanyl seizures were historically less common in the Western U.S., this analysis found that this region now accounts for most of law enforcement seizures of fentanyl overall, as well as total weight of fentanyl seized. The proportion of fentanyl pill seizures compared to the overall number of fentanyl seizures was also highest in the West, with 77.8% of all law enforcement seizures of fentanyl in the West being in pill form in 2023. These data emphasize the need for continued monitoring of regional shifts in the fentanyl supply, to help inform targeted prevention and public health responses.

, with 75% of those deaths involving an opioid. The overall rise in overdose deaths is largely attributable to the proliferation of illicit fentanyl, a synthetic opioid. Illicit fentanyl is highly potent, cheaply made, and easily transported, making it extremely profitable. Fentanyl is about 50 times more potent than heroin and a lethal dose may be as small as two milligrams.

While some people knowingly consume fentanyl, many people do not know if the drugs they plan to use contain fentanyl. This is especially true of illicit counterfeit pills, which are often made to resemble prescription medications such as oxycodone or benzodiazepines, but really contain fentanyl. Recent studies have reported a��, which remained elevated well into 2022 according to a��. This has been largely attributed to widespread availability of illicit fentanyl, the proliferation of counterfeit pills containing fentanyl, and the ease of purchasing pills through social media.

“Availability of illicit fentanyl is continuing to skyrocket in the U.S., and the influx of fentanyl-containing pills is particularly alarming,” said Joseph J. Palamar, Ph.D., M.P.H., associate professor in the Department of Population Health at NYU Grossman School of Medicine, New York City, and lead author on the paper. “Public health efforts are needed to help prevent these pills from falling into the hands of young people, and to help prevent overdose among people taking pills that unsuspectingly contain fentanyl.”

The data used for this analysis were collected through the����(HIDTA) program, a grant program aimed at reducing drug trafficking and misuse administered by the��. Though law enforcement seizures do not necessarily reflect prevalence of use, they represent an indicator of the availability of illicit drugs.

Unlike most survey data and surveillance systems which can be lagged for a year or more, HIDTA data are made available quarterly, allowing evaluation in almost real time. HIDTA data also distinguish between the presence of fentanyl in pill or powder form. Analyzing these data can therefore help identify trends in availability of illicit substances and act as a type of early warning system to shift public health education or interventional resources more quickly.

HIDTA data does not differentiate between fentanyl and its analogs, nor estimate the amount of fentanyl present in seized substances. However, given the small amount necessary for an overdose, the authors note that the presence of any fentanyl is an important indicator of overdose risk.

This analysis, published in��the International Journal of Drug Policy, was led by researchers from the NIDA-funded��. It builds on a () of trends in seizures of powders and pills containing illicit fentanyl in the U.S. between 2018 through 2021.

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About the National Institute on Drug Abuse (NIDA): NIDA is a component of the �鶹��ýӳ��, U.S. Department of Health and Human Services. NIDA supports most of the world’s research on the health aspects of drug use and addiction. The Institute carries out a large variety of programs to inform policy, improve practice, and advance addiction science. For more information about NIDA and its programs, visit .

About the �鶹��ýӳ�� (NIH): NIH, the nation's medical research agency, includes 27 Institutes and Centers and is a component of the U.S. Department of Health and Human Services. NIH is the primary federal agency conducting and supporting basic, clinical, and translational medical research, and is investigating the causes, treatments, and cures for both common and rare diseases. For more information about NIH and its programs, visit www.nih.gov.

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