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| | Pinellia, Arisaema, Acorus and Typhonium |
 | | The uses of acorus, as defined in this ancient text, are almost identical to those indicated in the same text for polygala, with which acorus is frequently combined in formulas for treating neurological disorders. |
 | | The effects of acorus are thought to be due mainly to the essential oil fraction, which contains asarone (a significant ingredient of asarum); terpenes, such as caryophyllene (a major ingredient of clove); and methyleugenol and methylisoeugenol (found also in asarum and clove). |
 | | Acorus calamus was reported, in a single study, to cause cancer in laboratory animals, causing the FDA to restrict its use in herbal medicines. |
| www.itmonline.org /arts/pinellia.htm (4292 words) |
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