Pau d'arco bark, Tabebuia impetiginosa, is commonly used as an anticancer and antifungal remedy. It may be helpful for fighting infections in the digestive tract, both bacterial and fungal. Its active constituents include apachol and beta-lapachone, which have demonstrated potent antifungal properties in laboratory tests.
Contraindicated for blood clotting disorders. Not for use by pregnant women. Side effects with high doses may include nausea, vomiting, intestinal discomfort, and anticoagulant effects.
This can be taken as an infusion, tincture, and fluid extract.