Sophora tonkinensis, Shan Dou Gen Sophora tonkinensis, Shan Dou Gen 山豆根 Bushy Sophora Shan Dou Gen (TCM) Sophora tonkinensis(Photo: 阿橋 HQ) (Wikimedia) Botanical name: Sophora tonkinensis (syn. S. subprostrata), Sophora tonkinensis var. polyphylla Parts used: Root Temperature & Taste: Cold, dry. Bitter Classification: B. Clears Heat and Poison Uses: 1. Clears Heat, Resists Poison, Benefits the Throat:-Swollen, painful Sore Throat, Tonsillitis-taken internally, as a gargle, or simply held in the mouth2. Clears Heat, Resists Poison, Resolves Swellings:-Abscesses, Boils, Toxic Sores-Cancer of the Lungs (early stage), Throat and Bladder-traditionally for Damp-Heat Jaundice-‘Neutralizes toxins of various drugs’ (Kai Bao Ben Cao)-‘detoxifies toxin of Gelsemium elegans Gou Wen, Gold and Croton Ba Dou and other drugs’ (Ma Zhi)-‘Bites odf Snakes, Dogs and Spider’, apply the juice topically. (Li Shi Zhen)3. Clears Heat, Moves the Blood:-abdominal pain and distention in women due to Qi and Blood disorder (Li Shi Zhen)-taken with wine for this purpose.4. Kills Worms:-‘kills Tapeworm and other worms’ (Li Shi Zhen) Dose: Decoction: 3–6 grams (up to 9 grams) Main Combinations: 1. Painful, swollen Sore Throat:i. ‘Hold one drug in the mouth and swallow the juice to treat inflammation and pain in the throat. It works miraculously’. (Su Song)ii. Sophora tonkinensis…

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