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Methadone deaths: a toxicological analysis.

C M Milroy1, A R Forrest

  • 1Department of Forensic Pathology, University of Sheffield, UK. C.M.Milroy@Sheffield.ac.uk

Journal of Clinical Pathology
|May 24, 2000
PubMed
Summary
This summary is machine-generated.

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Methadone concentrations in fatal cases overlap with therapeutic levels, complicating the determination of a definitive fatal concentration. Postmortem redistribution requires careful examination of all findings to ascertain cause of death.

Area of Science:

  • Forensic Toxicology
  • Clinical Pharmacology

Background:

  • Methadone is a widely used opioid agonist therapy medication.
  • Determining fatal methadone concentrations is crucial for forensic investigations.

Purpose of the Study:

  • To conduct a toxicological analysis of deaths involving methadone.
  • To establish fatal methadone concentrations in these cases.

Main Methods:

  • Analysis of 111 deaths where methadone was mentioned.
  • Categorization into methadone-only and combination drug deaths.
  • Comparison of toxicological findings with existing literature.

Main Results:

  • Mean methadone concentrations in adult deaths were 584 µg/L (sole cause) and 576 µg/L (combination).

Related Experiment Videos

  • Significant discrepancies in methadone concentrations were observed between different sampling sites within the same body.
  • Fatal concentrations overlapped with therapeutic ranges.

    • Conclusions:

    • Caution is needed when defining fatal methadone concentrations due to postmortem redistribution.
    • Individuals dying from methadone poisoning may not necessarily be participants in methadone programs.
    • Comprehensive postmortem analysis is essential for accurate cause of death determination.