Unknown toxicity of drugs

Untested toxic effects of chemical substances
Lack of non-fatal overdose data
Lack of centralized collection system for drug overdoses
It was reported in 1999 that victims of a slimming treatment that used Chinese herbs will receive damages totalling up to 2.5 billion BEF in Belgium's biggest ever case of medical negligence. The pills contained a substance, aristolochic acid, which can damage the kidneys and has produced progressive kidney failure in over 100 of 2,000 women who used the slimming pills the same clinic, which was run by doctors not herbalists. Some patients also developed leaky heart valves. The prescription referred to [Stephania tetrandra]. As medicinal herbs, [Stephania] and [Aristolochia fangchi] are both commonly delivered as roots and the transliteration of the Chinese names is similar: [Han Fang Ji] and [Guang Fang Ji] respectively. It is likely that the herb supposed to be [Han Fang Ji] was misidentified by the exporters in Hong Kong, by the importers in Belgium and by the doctors in the slimming clinic.
Drug overdoses should be monitored and recorded in a database to help give a better picture of the illicit drug problem.
(E) Emanations of other problems