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Toxicological risks of Chinese herbs
1Medical Toxicology Information Services, Guy's & St Thomas' NHS Foundation Trust London, St Thomas Street, London, U. K. Debbie.Shaw@gstt.nhs.uk
Planta Medica
|November 16, 2010
Summary
Traditional Chinese Medicine (TCM) safety is a growing concern, with potential toxicity from Chinese materia medica (CMM). Despite risks like adulteration and narrow therapeutic ranges, TCM remains relatively safe, requiring improved pharmacovigilance.
Area of Science:
- Pharmacology
- Integrative Medicine
- Toxicology
Background:
- Growing popularity of Traditional Chinese Medicine (TCM) raises safety and toxicity concerns regarding Chinese materia medica (CMM).
- TCM traditionally recognizes CMM toxicity, employing restricted use and processing methods to mitigate risks.
- Adverse reactions are often linked to misuse, abuse, or pharmaceutical adulteration of TCM products.
Purpose of the Study:
- To review the safety profile of Chinese materia medica (CMM) within Traditional Chinese Medicine (TCM).
- To highlight potential toxicity risks and challenges in assessing the safety of CMM.
- To emphasize the need for enhanced pharmacovigilance and pharmacoepidemiology in TCM.
Main Methods:
- Review of existing literature on TCM safety and CMM toxicity.
- Analysis of reported adverse reactions and their causes.
- Discussion of challenges in detecting chronic or cumulative toxic effects.
Main Results:
- While some CMM possess inherent toxicity (e.g., Aconitum, Aristolochia species) and adulteration is a significant issue, TCM exhibits a relatively low rate of adverse reactions compared to conventional drugs.
- Misuse and abuse are common causes of adverse events.
- Chronic toxicity is difficult to detect in traditional settings.
Conclusions:
- Despite safety concerns, TCM is relatively safe when used appropriately.
- Improved accessibility of Chinese literature and robust pharmacovigilance/pharmacoepidemiology are crucial for ensuring TCM safety.
- Further research is needed to fully understand and manage the risks associated with CMM.
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