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A fatal case of suicidal pentoxifylline intoxication
J M Suárez-Peñaranda1, R Rico-Boquete, M López-Rivadulla
1Instituto de Medicina Legal, Facultad de Medicina, Santiago de Compostela, Spain.
International Journal of Legal Medicine
|May 20, 1998
Summary
Pentoxifylline, used for vascular disease, is generally safe. However, a massive overdose led to fatal refractory shock in a patient, highlighting potential toxicity risks.
Area of Science:
- Pharmacology
- Toxicology
- Clinical Medicine
Background:
- Pentoxifylline is a xanthine derivative commonly prescribed for peripheral vascular disease.
- It is widely regarded as a safe medication with limited documented cases of severe poisoning.
- Previous literature includes only one report of a non-fatal overdose in a suicide attempt.
Observation:
- This report details a fatal case of pentoxifylline overdose in a 54-year-old male.
- The patient ingested a massive dose of the drug.
- He developed refractory shock and died within 24 hours of ingestion.
Findings:
- Post-mortem blood pentoxifylline levels were significantly elevated at 32.5 micrograms/ml.
- This level is substantially higher than the average therapeutic range of 1.3 micrograms/ml.
- The findings indicate a potential for lethal toxicity at extremely high doses.
Implications:
- This case underscores the critical importance of dose-response relationships in drug toxicity.
- It suggests that pentoxifylline, despite its general safety profile, can be lethal in massive overdose scenarios.
- Clinicians should be aware of the potential for severe adverse events, including fatal outcomes, with extreme pentoxifylline ingestion.