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Paracelsus Revisited: The Dose Concept in a Complex World
1Department of Public Health, University of Southern Denmark, Odense, Denmark.
Basic & Clinical Pharmacology & Toxicology
|May 24, 2016
Summary
Modern toxicology faces complex challenges like developmental exposures and genetic susceptibility, moving beyond Paracelsus's dose-dependent poison concept. Relying on facts over authority is crucial for public health guidance amid chemical uncertainty.
Area of Science:
- Environmental Toxicology
- Public Health Science
Background:
- Historically, toxicology focused on occupational poisonings and pharmaceutical side effects, exemplified by mercury.
- Paracelsus established foundational concepts like the threshold and no-adverse effect level.
Observation:
- Contemporary toxicology grapples with intricate issues including developmental exposures, genetic predispositions, and hypersusceptibility.
- The proliferation of industrial chemicals challenges the assumption that untested substances are safe.
- Toxicology research often involves extensive replication, focusing on well-studied toxicants like mercury, while neglecting lesser-known hazards.
Findings:
- Modern toxicology contends with multifaceted toxicity causes and persistent uncertainty, even with well-researched compounds.
- The sheer volume of chemicals necessitates a re-evaluation of how potential toxicities are assessed.
Implications:
- There is a critical need for improved public health decision-making frameworks that address pervasive uncertainty.
- Adopting Paracelsus's principle of evidence-based reasoning over blind reliance on authority is essential for chemical hazard protection.
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