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Herbs & Cultures
Image of Tonkin sophora root (shan dou gen)

Asia · Herb · № 691

Sophora tonkinensis

Region
Asia
Origin
South and Southeast Asia and southern China
1 traditionImage: 阿橋 HQ · CC BY-SA 2.0

Herb · Asia

Tonkin sophora root (shan dou gen)

Sophora tonkinensis

Traditionally attributed effects: cools fire in the upper body in a swollen, painful throat and gums.

Safety notes

Toxic or risky: only under expert supervision. Deliberately no dosage is given here. Not during pregnancy or for diarrhoea from spleen qi deficiency. Nerve and liver poisoning has been reported even at usual doses. Traditional use is no proof of effectiveness; if you are pregnant, breastfeeding, taking medication or have a medical condition, consult a doctor or pharmacist.

Cautions by tradition (1)
  • Chinese materia medica: Toxic: do not use yourself.

Preparation

Root. Deliberately no dosage is given here.

Use in traditions

Described in the classical Chinese materia medica, in the group 'herbs that cool heat and detoxify'. Shan dou gen is a very bitter remedy for an inflamed, sore throat. It is poisonous in higher doses and can cause nausea and nervous symptoms.

Applications

Use by tradition

How different herbal traditions describe this herb. Amounts are traditional guidelines checked for obvious errors; they are not medical advice. For poisonous plants no dosage is given on purpose.

Chinese materia medica

Nature and taste
bitter, cold
Meridians
heart, lung, large intestine

Attributed effects

Cools fire and 'toxin' in the upper body in a swollen, painful throat and gum inflammation, and cough from lung heat.

Preparation and amount

Deliberately no dosage is given here: only under the supervision of a qualified therapist.

Combinations

  • With burdock seed and platycodon for sore throat

Caution: Toxic: do not use yourself.