| http://www.w3.org/ns/prov#value | - Comfrey (Symphytum officinale) has been used as a vulnerary and to reduce inflammation.[47] It was also used internally in the past, for stomach and other ailments, but its toxicity has led a number of other countries, including Canada, Brazil, Australia, and the United Kingdom, to severely restrict or ban the use of comfrey.[48]
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