Toxicity of complementary therapies: An Eastern perspective

Chinese traditional medicine is used extensively in Chinese populations, an d other Asian countries employ similar therapies, Herbal treatments have a major role in these systems, and although most have a well-established safe ty record, occasional adverse effects are seen. Problems arise when toxic h erbs are used in excessive doses, with improper preparation, or when they a re substituted erroneously. There may also be adulteration with Western dru gs or heavy metals, and interactions between herbs and Western drugs may al so occur. it is always prudent to obtain a complete history of the use of h erbal medications during any clinical assessment, particularly in Asian pat ients. (C) 2000 the American College of Clinical Pharmacology.