Super-potent synthetic opioids called nitazenes are spreading across the U.S. - Summary - MDSpire

Super-potent synthetic opioids called nitazenes are spreading across the U.S.

  • By

  • Jonathan Moens — Bellingcat

  • June 18, 2026

  • 0 min

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Objective:

To investigate the increasing prevalence and impact of nitazenes, a class of highly potent synthetic opioids, in the United States.

Approach:
    Key Findings:
    • Nitazene-related overdose deaths in the U.S. rose from 27 in 2020 to 409 in 2024, with 747 confirmed deaths in 2023 and 2024.
    • Nitazenes can be up to 40 times more potent than fentanyl and 500 times stronger than heroin.
    • The U.S. has reported 26 different kinds of nitazenes since 2019, with over 1,100 confirmed fatalities.
    • Ohio has the highest number of nitazene-related overdose deaths and laboratory reports in the U.S.
    • Nitazenes are often mixed with other drugs, increasing the risk of fatal overdoses.
    Interpretation:

    The rise of nitazenes poses a significant public health threat, particularly as they are frequently mixed with other substances, complicating overdose risks.

    Limitations:
    • Deaths from nitazenes may be underreported due to limited testing capabilities in forensic labs.
    • Not all laboratories report nitazene data to national databases, leading to potential underestimation of the issue.
    Conclusion:

    The investigation highlights the need for increased awareness and testing to address the growing threat of nitazenes.

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