herbals yellow-dock

RECND363

Yellow Dock

Scientific:Rumex crispus
Other:Yellow Dock

Indications

Toxonomically related to rhubarb, has similar constituents and actions.

Dermatologic
• chronic skin eruptions due to poor digestion and elimination
• 'bad blood'
eczema
acne
psoriasis

Gastrointestinal
• sluggish bowels
constipation

Actions

alterative
• bowel tonic
cholagogue
• laxative (stimulating)
• cathartic
bitter

Constituents

• Anthraquinone (e.g. rhein, emodin, aloe-emodin)
• Tannins
• Flavonoids

Posology

• Tincture (1:5, 40% EtOH): 1-4 ml tid
• Decoction (root): 1-2 tsp tid

Safety

Side-effects: Red-coloured urine, constipation. Fresh root may lead to nausea, vomiting.

Long-term use: Hypokalemia.

Toxicity: Leaves are high in oxalic acid, which is toxic; may lead to kidney stones.

References

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Barnes J, Anderson LA, Phillipson JD. Herbal Medicines, 3rd ed. London: Pharmaceutical Press, 2007.

Bone K. Principles and Practice of Phytotherapy. Edinburgh: Churchill Livingstone, 2000.

Bone K. A Clinical Guide to Blending Liquid Herbs: Herbal Formulations for the Individual Patient. St Louis, MO: Churchill Livingstone, 2003.

Brinker F. The Toxicology of Botanical Medicines, 3rd ed. Sandy, Oregon: Eclectic Medical Publications, 2000.

Felter HW, Lloyd JU. King's American Dispensatory. 1898. http://www.ibiblio.org/herbmed/eclectic/kings/main.html. Accessed: August 19, 2006.

Hoffman D. Medical Herbalism. Rochester, Vermont: Healing Arts Press, 2003.

Weiss RF. Herbal Medicine. Beaconsfield, England: Beaconsfield Publishers Ltd, 1988.

Williamson EM, ed. Major Herbs of Ayurveda. Edinburgh: Churchill Livingstone, 2002

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