Bianthraquinone glycosides are formed during the preparation and conservation of fluid extracts of cascara. Analysis of these preparations has shown that up to 20% of total amount of anthracene glycosides can be dimerized. These dimers are devoid of laxative activity. They are absorbed in the intestine and very slowly excreted.
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http://dx.doi.org/10.1055/s-2006-960145 | DOI Listing |
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