botanical name(s): Juglans nigra, Juglans cinerea
synonyms: black walnut, English walnut, white walnut, lemon walnut, oil nut
part(s) used:
qualities:
affinities:
actions:
dosage:
» tincture: 2 - 4 ml.
therapy:
AHPA Botanical Safety Rating:
» J. nigra: 2d
» J. cinerea: 1
toxicity: 1; see tannin toxidrome
» J. nigra contraindicated in prolonged use due to its juglone component, a known mutagen in animals (McGuffin)
» caution is advised regarding use in patients with history of recent surgery, diabetes, hypoglycemia, nephrotic syndrome, urinary tract infections, acute infectious hepatitis, leukemias, Graves disease, or related genetic disorders (Langer and Greer, pp. 66-67)
» studies have shown a possible goitrogenic response (Langer and Greer, p. 81)
» may act as a local irritant (AMA, p. 193)
constituents: naphthaquinones, fixed and essential oil, tannins
footnotes
Lampe, K.F., and McAnn, M.A. 1985. AMA Handbook of Poisonous and Injurious Plants. Chicago: American Medical Association.
Langer, P., and Greer, M.A. 1977. Anti-Thyroid Substances and Naturally Occurring Goitrogens. New York: Karyer, Greer.
McGuffin, Michael, ed. 1997. American Herbal Products Associations Botanical Safety Handbook. Boca Raton, FL: The CRC Press.