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The stimulating properties of ephedra were contributing to hypertension, strokes (and stroke risk) and myocardial infarctions (heart attacks).
http://wiki.answers.com/Q/Why_did_the_FDA_ban_ephe...
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The FDA banned the sale of ephedra-containing supplements on April 12, 2004.
http://www.chacha.com/question/when-was-ephedra-ba...
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Ephedra, a banned substance, is found in the Chinese herb, ma huang . Ephedra was banned by the government for health concerns. A studied published in 2001 by Annals of Internal medicine
http://www.bodybuilding.com/fun/topicoftheweek27.h...
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After years of study, the FDA has concluded continued sale and use of products containing ephedra "pose an unreasonable health risk." There have been about 1,000 reports
http://www.sptimes.com/2003/12/31/Worldandnation/A...
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