Two fatal cases involving concurrent use of methamphetamine and morphine

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High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry
10:17

High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry

Published on: April 23, 2019

Koichi Uemura1, Yoshihide Sorimachi, Mikio Yashiki

  • 1Department of Forensic Medicine, Graduate School of Medicine, University of Tokyo, Tokyo 113-0033, Japan. kuemura@m.u-tokyo.ac.jp

Journal of Forensic Sciences
|October 11, 2003
PubMed

Insights

Simultaneous use of methamphetamine (MAP) and morphine (MOR) can lead to severe hyperthermia. This study suggests morphine may worsen methamphetamine-induced hyperthermia, even at potentially lethal levels.

Area of Science:

  • Toxicology
  • Pharmacology
  • Clinical Medicine

Background:

  • Methamphetamine (MAP) intoxication is a significant public health issue in Japan, frequently causing hyperthermia.
  • Hyperthermia is a well-established complication of MAP intoxication.
  • The interaction between MAP and other co-administered substances, like morphine (MOR), requires further investigation.

Observation:

  • Two cases of simultaneous MAP and MOR administration were observed.
  • Patients presented with toxic blood levels of MAP and putatively lethal levels of MOR.
  • Both cases exhibited severe hyperthermia.

Findings:

  • Hyperthermia was present despite MOR levels being potentially lethal.
  • The findings suggest a possible synergistic effect between MOR and MAP in causing hyperthermia.
  • Experimental data supports the hypothesis of MOR potentiating MAP-induced hyperthermia.

Implications:

  • Clinicians should be aware of the potential for synergistic toxicity when MAP and MOR are co-administered.
  • This interaction may complicate the management of drug intoxication, particularly hyperthermia.
  • Further research is warranted to elucidate the mechanisms underlying this synergistic effect.

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