— Family Berberidaceae Part used: Bark of root, root, bark, berries. Herbal action: bitter tonic, stomachic, alterative and mild purgative. It regulates digestion, and is useful in diarrhea Medicinal uses: an excellent remedy for dyspepsia and functional derangement of the liver. It is also suggested for jaundice and has been used as an astringent and a febrifuge. Barberry is traditionally given to fight off microorganisms; it is also an excellent tonic especially for delicate and weak children. I find it useful for patients who need protection, especially in the gastrointestinal tract.