A
multipurpose remedy; any
herb,
drug, or treatment which may
cure or assist with multiple
illnesses or conditions.
Examples: aloe, witch hazel, tea tree oil.
Sources:
David Grambs' The Endangered English Dictionary
http://www.lineone.net/dictionaryof/difficultwords/d0010181.html
http://hpk.felk.cvut.cz/tis/Voc/081.html