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Hepatotoxicity associated with herbal products
R Brent Furbee1, Kevin S Barlotta, Melrose Kanku Allen
1Indiana Poison Center, Department of Emergency Medicine, Indiana University School of Medicine, Room AG373, 1701 North Senate Boulevard, Indianapolis, IN 46206, USA.
Clinics in Laboratory Medicine
|March 29, 2006
Summary
Identifying herbal product-induced liver injury is challenging due to overlapping causes. The key lies in the timing of symptoms and their resolution after stopping the herbal supplement.
Area of Science:
- Toxicology
- Hepatology
- Pharmacology
Background:
- Herbal products are frequently linked to liver damage (hepatotoxicity).
- Diagnosing specific herbal product-induced liver injury is complex.
- Multiple factors can obscure the cause of liver injury, including co-existing liver disease, other toxic exposures, or product contamination.
Purpose of the Study:
- To highlight the diagnostic challenges in attributing liver injury to specific herbal products.
- To emphasize the importance of temporal relationships in diagnosing herbal hepatotoxicity.
Main Methods:
- Review of clinical presentations and diagnostic considerations for herbal product-induced liver injury.
- Emphasis on case history, including product usage and symptom onset/resolution.
Main Results:
- Few specific clinical or laboratory markers definitively identify herbal product-induced liver injury.
- The temporal association between herbal product use and liver injury onset is a critical diagnostic clue.
- Cessation of the suspected herbal product often leads to the resolution of liver injury.
Conclusions:
- Diagnosing herbal product-induced liver injury requires careful consideration of the patient's history.
- The timing of symptom onset after starting an herbal product and symptom resolution after stopping it are crucial for diagnosis.
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