Misuse of Herbal Remedies: The Case of an Outbreak of Terminal Renal Failure in Belgium (Chinese Herbs Nephropathy)

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Abstract
At least 100 cases of extensive interstitial fibrosis of the kidneys were observed in Belgium in women who had followed a weight-loss regimen that included the use of Chinese herbs. The possible relation between the renal disease and these Chinese herbs was investigated. It was shown that the prescribed Chinese herb called Stephania tetrandra was, in fact, inadvertently replaced by another Chinese herb, namely Aristolochia fangchi in the powdered extracts delivered in Belgium and in France. The development of renal disease in about 100 patients exposed to the so-called Stephania tetrandra stresses the need for more stringent control of herbal medicine.