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Related Experiment Videos

A fatal intoxication due to doxepin.

J Cordonnier, A Heyndrickx, L Jordaens

    Journal of Analytical Toxicology
    |July 1, 1983
    PubMed
    Summary

    A fatal doxepin intoxication case is detailed. Analysis revealed unique doxepin and desmethyldoxepin concentrations in tissues, particularly the heart, aiding in understanding tricyclic antidepressant toxicity.

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    Area of Science:

    • Forensic Toxicology
    • Pharmacology

    Background:

    • Tricyclic antidepressants (TCAs) like doxepin are commonly prescribed but can be fatal in overdose.
    • Accurate quantification of drug and metabolite levels in biological matrices is crucial for forensic investigations.

    Observation:

    • A fatal intoxication case involving doxepin was investigated.
    • Doxepin and its primary metabolite, desmethyldoxepin, were quantified in blood, urine, and various tissues.
    • Analytical methods included thin-layer chromatography (TLC) and gas chromatography with flame-ionization detection (GC/FID).
    • The technique allowed for the isomeric differentiation of doxepin (cis and trans).

    Findings:

    • Significant concentrations of doxepin and desmethyldoxepin were detected in multiple tissues.
    • A notably high ratio of doxepin to desmethyldoxepin was observed specifically in myocardial (heart) tissue.
    • The analytical method proved effective for quantitative analysis and isomer determination.

    Implications:

    • The findings highlight the importance of tissue analysis in fatal intoxication cases.
    • The unusual myocardial doxepin:desmethyldoxepin ratio may offer insights into drug distribution and metabolism in critical overdose scenarios.
    • This case underscores the utility of advanced chromatographic techniques in forensic toxicology.

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