Compound Monograph
Lapachol
A naphthoquinone from pau d'arco (Tabebuia), the characteristic bioactive quinone of the bark.
Classification
Lapachol is one of the quinones, part of the phenolics class. Antioxidant compounds built around one or more phenol rings — the flavonoids, tannins, phenolic acids, coumarins, and pigments behind much of a plant's protective chemistry.
Where Does It Come From? (1)
Lapachol is one of the quinones, found in Pau D'Arco. It is flagged as moderately toxic.