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Interaction between warfarin and Chinese herbal medicines
Yan Ting Chua, Xiang Ling Ang, Xi Ming Zhong
1Medical Oncology, Parkway Cancer Centre, 6A Napier Road, Gleneagles Hospital #01-35, Singapore 258500. khooks@pcc.sg.
Singapore Medical Journal
|February 3, 2015
Summary
Traditional Chinese Medicine (TCM) uses herbs to balance Yin and Yang. This paper educates Western physicians on common TCM herbs and their potential interactions with warfarin, a critical drug.
Area of Science:
- Integrative Medicine
- Pharmacology
- Traditional Chinese Medicine (TCM)
Background:
- TCM views the body as a balance of Yin and Yang, with disease arising from imbalance.
- Scientific validation of TCM remains challenging, yet its popularity grows globally.
- Increasing use of TCM herbs raises concerns about herb-drug interactions, particularly for Western medicine.
Purpose of the Study:
- To educate Western physicians about commonly used TCM herbs.
- To highlight potential interactions between TCM herbs and warfarin.
- To increase awareness of TCM's impact on Western therapies.
Main Methods:
- Literature review of common TCM herbs and their properties.
- Analysis of reported herb-drug interactions, focusing on warfarin.
- Educational content development for Western medical practitioners.
Main Results:
- Identified several common TCM herbs with potential to interact with warfarin.
- Warfarin's narrow therapeutic index makes it particularly vulnerable to these interactions.
- Lack of scientific data complicates the assessment of many TCM herb-drug interactions.
Conclusions:
- Western physicians need education on TCM herbs to manage potential herb-drug interactions.
- Awareness of TCM use is crucial for patient safety, especially when prescribing warfarin.
- Further research is needed to scientifically substantiate TCM and clarify herb-drug interactions.
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