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Burdock (Arctium lappa)
By MedlinePlus

Burdock has historically been used to treat a wide variety of ailments, including arthritis, diabetes, and hair loss. It is a principal herbal ingredient in the popular cancer remedies Essiac (rhubarb, sorrel, slippery elm) and Hoxsey formula (red clover, poke, prickly ash, bloodroot, barberry).

Burdock fruit has been found to cause hypoglycemia in animals, and preliminary human studies have examined the efficacy of burdock root in diabetes. In vitro and animal studies have explored the use of burdock for bacterial infections, cancer, HIV, and nephrolithiasis (kidney stones). However, there is currently insufficient human evidence regarding the efficacy of burdock for any indication.

Synonyms

Akujitsu, anthraxivore, arctii, Arctium lappa Linne, Arctium minus , Arctium tomentosa , Arctium tomentosum Mill., bardana, Bardanae Radix, bardane, bardane grande (French), beggar's buttons, burdock root, burr, burr seed, chin, clot-burr, Clotbur, cocklebur, cockle button, cocklebuttons, cuckold, daiki kishi, Edible burdock, Fox's clote, grass burdock, great bur, great burdock, Great burdocks, gobo (Japan), Grosse klette (German), happy major, hardock, hare burr, hurrburr, Kletterwurzel (German), lampazo (Spanish), lappola, love leaves, niu bang zi, oil of lappa, personata, Philanthropium, thorny burr, turkey burrseed, woo-bang-ja, wild gobo.

Evidence

These uses have been tested in humans or animals. Safety and effectiveness have not always been proven. Some of these conditions are potentially serious, and should be evaluated by a qualified healthcare provider.

Uses based on scientific evidence

Diabetes

Animal research and initial human studies suggest possible blood sugar lowering effects of burdock root or fruit. However, the available human research has not been well designed, and further study is needed before a clear recommendation can be made.

Uses based on tradition or theory

The below uses are based on tradition or scientific theories. They often have not been thoroughly tested in humans, and safety and effectiveness have not always been proven. Some of these conditions are potentially serious, and should be evaluated by a qualified healthcare provider.

Abscesses, acne, anorexia nervosa, aphrodisiac, arthritis, bacterial infections, bladder disorders, blood thinner, boils, burns, cancer, canker sores, common cold, cosmetic uses, dandruff, detoxification, diuretic (increasing urine flow), eczema, fever, fungal infections, gout, hair loss, headache, hemorrhoids, hives, HIV infection, hormonal effects, inflammation, ichthyosis (skin disorder), impotence, kidney diseases, kidney stones, laxative, liver disease, liver protection, lice, back pain, measles, pneumonia, psoriasis, respiratory infections, rheumatoid arthritis, ringworm, sciatica, scurvy, seborrhea (over-activity of sebaceous skin glands), skin disorders, skin moisturizer, sores, sterility, syphilis, tonsillitis, ulcers, urinary tract infections, venereal diseases, warts, wound healing.

Dosing

The below doses are based on scientific research, publications, traditional use, or expert opinion. Many herbs and supplements have not been thoroughly tested, and safety and effectiveness may not be proven. Brands may be made differently, with variable ingredients, even within the same brand. The below doses may not apply to all products. You should read product labels, and discuss doses with a qualified healthcare provider before starting therapy.

Standardization

Standardization involves measuring the amount of certain chemicals in products to try to make different preparations similar to each other. It is not always known if the chemicals being measured are the "active" ingredients. Currently, there is no widely accepted standardization for burdock products, and various preparations and doses have been used traditionally.

Adults (18 years and older)

General use (by mouth): No specific dose of burdock has been proven effective or safe, although a range of doses and types of preparations have been used. As a dried root, a range of doses have been used, including 2 to 6 grams of pure dried root daily, or 2 to 6 grams of dried root in the form of a decoction three times daily. As tablets/capsules, burdock may be available in 425 to 475 milligram capsules. In a decoction (1:20), 500 milliliters daily has been used. In a tincture, 8 to 12 milliliters (1:5) three times daily, or 2 to 8 milliliters (1:10 in 25% alcohol) three times daily, or 0.25 to 1 teaspoon (1:10 in 45% alcohol) up to three times daily has been used. As a fluid extract (1:1 in 25% alcohol), 2 to 8 milliliters three times daily has been used. Burdock has also been used as a root tea, with 2 to 6 grams of dried burdock root in 500 milliliters of water taken three times daily, or 1 cup 3 to 4 times daily, or 1 teaspoon of dried burdock root boiled in 3 cups of water for 30 minutes (up to 3 cups daily). Burdock has been used as a diuretic (to increase urine flow), with preparations made from powdered burdock seeds as a yellow product called oil of lappa.

Topical (on the skin): Burdock has been used on the skin as a compress or plaster for eczema, psoriasis, baldness, or warts.

Children (younger than 18 years)

There is not enough scientific information to recommend the use of burdock in children.

Next: Safety and Interactions

Tags: Herbal Medicine

About the Author

medlineplus.gov
MedlinePlus will direct you to information to help answer health questions. MedlinePlus brings together authoritative information from NLM, the National Institutes of Health (NIH), and other government agencies and health-related organizations. MedlinePlus also has extensive information about drugs, an illustrated medical encyclopedia, interactive patient tutorials, and latest health news.


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