Pau D’Arco

Pau D’arco
Pau D’arco


Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, Ineffective, and Insufficient Evidence to Rate. The effectiveness ratings for PAU D’ARCO are as follows:

Insufficient evidence to rate effectiveness for…

  • Anemia.
  • Arthritis-like pain.
  • Asthma.
  • Bladder and prostate infections.
  • Boils.
  • Bronchitis.
  • Cancer.
  • Common cold.
  • Diabetes.
  • Diarrhea.
  • Eczema.
  • Fibromyalgia.
  • Flu.
  • Infections with yeast, bacteria, viruses, or parasites.
  • Intestinal worms.
  • Liver problems.
  • Psoriasis.
  • Sexually transmitted diseases (gonorrhea, syphilis).
  • Stomach problems.
  • Other conditions.

More evidence is needed to rate the effectiveness for these uses.

Warnings & Precautions

  • Pau d’arco is POSSIBLY UNSAFE when taken by mouth. In high doses, pau d’arco can cause severe nausea, vomiting, diarrhea, dizziness, and internal bleeding. The safety of in typical doses is not known.
  • Pregnancy and breast-feeding: During pregnancy, pau d’arco is POSSIBLY UNSAFE when taken by mouth in typical amounts, and LIKELY UNSAFE in larger doses. Not enough is known about the safety of applying it to the skin. Stay on the safe side and avoid use if you are pregnant.
  • There is not enough reliable information available about the safety if you are breast-feeding. Stay on the safe side and avoid use.
  • Surgery: It might slow blood clotting and could increase the chance of bleeding during and after surgery. Stop using at least 2 weeks before a scheduled surgery.

Dosage Of Pau D’Arco

The appropriate dose of pau d’arco depends on several factors such as the user’s age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.


Consult your doctor or pharmacist.


All information on pau d’arco has been provided courtesy of MedLinePlus from the National Library of Medicine and from the FDA.