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Related Experiment Videos

Veratrum poisoning.

Leo J Schep1, David M Schmierer, John S Fountain

  • 1National Poisons Centre, University of Otago, Dunedin, New Zealand. leo.schep@stonebow.otago.ac.nz

Toxicological Reviews
|September 9, 2006
PubMed
Summary
This summary is machine-generated.

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Veratrum alkaloids cause toxicity by disrupting nerve cell sodium channels, leading to severe cardiovascular effects like hypotension and bradycardia. Prompt supportive care is crucial for recovery from Veratrum poisoning.

Area of Science:

  • Toxicology
  • Pharmacology
  • Cardiovascular Physiology

Background:

  • Veratrum species contain toxic steroid alkaloids affecting humans and animals.
  • These alkaloids disrupt nerve cell sodium channel permeability, causing continuous firing.

Purpose of the Study:

  • To elucidate the toxicological mechanisms of Veratrum alkaloids.
  • To detail the clinical manifestations and management of Veratrum poisoning.

Main Methods:

  • Review of existing literature on Veratrum alkaloid toxicity.
  • Analysis of the pharmacological action of these toxins on nerve cells and cardiovascular reflexes.

Main Results:

  • Veratrum alkaloids induce the Bezold-Jarisch reflex, characterized by hypotension, bradycardia, and apnoea.

Related Experiment Videos

  • Ingestion leads to gastrointestinal distress, cardiovascular abnormalities, and potential teratogenic effects in animals.

    • Conclusions:

    • Veratrum alkaloids pose significant toxicological risks, necessitating supportive care focusing on hemodynamic stability.
    • While historically used as antihypertensives, their narrow therapeutic index led to market withdrawal.