from The Century Dictionary and Cyclopedia

  • n. A yellow compound, found in lapacho wood from South America, and greenheart wood, Ocotea Bodiœi, from Surinam. It crystallizes in monoclinic prisms and melts at 140° C. Also called hydroxyamylene-naphthalene-quinone.


Sorry, no etymologies found.


  • However, lapachol is not considered a viable cancer treatment because tests on humans conducted by the National Cancer Institute indicated that high levels can cause many undesirable side effects.

    Earl Mindell’s New Herb Bible

  • Another study done at the Naval School of Health Sciences in Bethesda, Maryland, in 1974 found that lapachol is quite useful against parasitic infection.

    Earl Mindell’s New Herb Bible

  • One of these substances (lapachol) seems to be particularly potent.

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  • Research in South America and the United States shows that lapachol, an extract from the tree’s bark, contains active ingredients found to be effective against some forms of cancer.

    Earl Mindell’s New Herb Bible


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