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Pau d'Arco Bark C/S, inner 16 oz.
It is important to discuss the dose with your health care provider, since large amounts of pau d'arco can be toxic. The risk of side effects seems to be greater when the dose of lapachol is more than 1.5 g per day. However, it can be hard to determine how much lapachol the powdered bark contains.
Talk to your health care provider to determine the proper dose of pau d'arco because too much can be dangerous.