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HerbSophorae Tonkinensis Radix et Rhizoma

山豆根

Shān Dòu Gēn

Bushy Sophora Root

The dried root and rhizome of Sophora tonkinensis (Fabaceae). Cold and bitter, toxic, entering the Lung and Stomach channels. Excels at clearing heat-toxin and reducing throat swelling; a key herb for severe sore throat. Contains matrine and is somewhat toxic; dosage must be kept small.

Actions · 功效

清热解毒Clear heat and resolve toxicity
利咽消肿Benefit the throat and reduce swelling
清肺利咽Clear the Lung and benefit the throat

Indications · 主治

咽喉肿痛，火毒蕴结Swollen sore throat with fire-toxin accumulation
牙龈肿痛Swollen, painful gums
湿热黄疸Damp-heat jaundice

Dosage · 用量

Per day · decoction · non-pregnant adult

3–6 g

Reference range for non-pregnant adults. Not a personalized prescription. Pregnancy, lactation, and pediatric use require specialist supervision.

Draft· 2026-04-16

Footnotes · 引用

[1]Kaibao Bencao (Kaibao Materia Medica)
[2]Bencao Gangmu (Compendium of Materia Medica)

Permalink · CC BY-SA 4.0

Cite this entry

@misc{bencaodian-shan-dou-gen,
  author       = {{Bencaodian Editorial}},
  title        = {Shān Dòu Gēn 山豆根 (Bushy Sophora Root) — Sophorae Tonkinensis Radix et Rhizoma},
  year         = {2026},
  howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
  url          = {https://bencaodian.org/en/herbs/shan-dou-gen},
  urldate      = {2026-04-16},
  note         = {CC BY-SA 4.0}
}

Permalink is fixed

@misc{bencaodian-shan-dou-gen, author = {{Bencaodian Editorial}}, title = {Shān Dòu Gēn 山豆根 (Bushy Sophora Root) — Sophorae Tonkinensis Radix et Rhizoma}, year = {2026}, howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine}, url = {https://bencaodian.org/en/herbs/shan-dou-gen}, urldate = {2026-04-16}, note = {CC BY-SA 4.0} }