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Published on: June 23, 2023
Meptazinol and ethanol: a fatal intoxication
Peter D Maskell1, Giorgia De Paoli, L Nitin Seetohul
1Centre for Forensic and Legal Medicine, University of Dundee, Dundee, Scotland, United Kingdom. p.d.maskell@dundee.ac.uk
Abstract:
Meptazinol (Meptid(®)) is an analgesic drug that is used to treat mild to moderate pain including postoperative pain, obstetrical pain, and the pain of renal colic. This case reports a death due to the combined effects of meptazinol and alcohol in a man with significant heart disease and alcoholic liver disease. A 57-year-old male was found unresponsive in his bed at home with empty blister packets of meptazinol around him. A general drug screen detected the presence of meptazinol, and caffeine and metabolites, in cardiac blood. Analysis, both quantitative (HPLC-DAD) and qualitative (HPLC-DAD, LC-MS), of meptazinol was carried out. Meptazinol was found at the following concentrations: 15.5 mg/L in unpreserved femoral blood; 18.6 mg/L in preserved (fluoride-oxalate) femoral blood; 52.1 mg/L in unpreserved cardiac blood; 16.8 mg/L in preserved vitreous; 61.7 mg/L in unpreserved urine; and 9.8 g/L in stomach contents. Ethanol, analyzed by headspace GC-FID, was present in preserved (fluoride-oxalate) femoral venous blood, urine, and vitreous at concentrations of 232 mg/100 mL, 297 mg/100 mL, and 192 mg/100 mL, respectively. Death was attributed to meptazinol and ethanol toxicity, with atherosclerotic coronary artery disease as a contributing factor.
Insights
This case report details a fatal meptazinol and alcohol overdose in a 57-year-old male with pre-existing heart and liver disease. The combined toxicity of these substances was identified as the cause of death.
Area of Science:
- Forensic Toxicology
- Clinical Pharmacology
Background:
- Meptazinol is an analgesic used for mild to moderate pain.
- Concurrent alcohol use can potentiate drug effects.
- Pre-existing cardiovascular and hepatic conditions may increase risk.
Observation:
- A 57-year-old male with heart disease and alcoholic liver disease was found deceased.
- Empty meptazinol packaging was present; drug screening detected meptazinol and ethanol.
Findings:
- High concentrations of meptazinol were quantified in blood, urine, and stomach contents.
- Significant blood alcohol levels were also detected.
- Death was attributed to combined meptazinol and ethanol toxicity.
Implications:
- Highlights the potential dangers of combining meptazinol with alcohol, especially in individuals with pre-existing comorbidities.
- Underscores the importance of comprehensive toxicological analysis in post-mortem investigations.
- Informs clinical practice regarding patient counseling on alcohol-drug interactions.
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