Crude drug sample data base
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Scientific information data base
Common name | 紅芽大戟, Hongyadaji, Knoxiae Radix (CP2020), Knoxia Root (CP2020) | |||||
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Synonyms | 紅大戟, 大戟 | |||||
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Original plant name | Knoxia valerianoides Thorel ex Pitard | |||||
Family name | Rubiaceae | |||||
Used part | root | |||||
Official compendium | CP (2020 ed.) | |||||
Clinical application | As an antidote, laxative and for curing sores, Hongyadaji is applied for dropsy, a feeling of fullness in the chest, retention of phlegm, carbuncles and sores. | |||||
Medical system | Traditional Chinese medicine | |||||
Drug effect in traditional medicine | Traditional classification | Purgatives for removing water retention | ||||
Beneficial effect | [Property and Flavor] Cold; bitter; slightly toxic. [Meridian Tropism] Lung, spleen and kidney meridians. [Actions] To expel retained fluid by purgation, disperse swelling and dissipate binds. [Indications] Edema distention and fullness, hydrothorax and ascites, phlegm-fluid retention, aggregation and accumulation, cough and panting caused by qi counterflow, inhibited of defecation and urination, swelling abscess, sore and toxin, scrofula and phlegm nodule. | |||||
Chemical constituent | Anthraquinones (*C1): アントラキノン誘導体/Anthraquinone derivatives | |||||
Pharmacological effect | Not exactly known. | |||||
DNA sequence | AJ288631 | |||||
Classical reference (Chinese Herbal Classic "Zhenglei bencao") | ※Click this image to see the actual image | |||||
Disease | Ascites, Edema, Oliguria, Constipation, Pleural effusion, Pain due to flatulence of hypochondrium, Pyogenic dermatosis, Cervical lymphadenopathy, Subcutaneous nodule | |||||
Formulation | rarely used in formula | |||||
Related drugs | Jingdaji: the root of Euphorbia pekinensis Rupr. of family Euphorbiaceae, Caodaji: the root of Lespedeza sp. of family Leguminosae | |||||
References | CP2020: Pharmacopoeia of the People's Republic of China 2020 edi. C1)The Encyclopedia of Wakan-Yaku with Color Pictures Vol. I, p 14-15. | |||||
Remarks | At present, three species of Daji (大戟) are distributed in China, Hongyadaji (紅芽大戟) of family Rubiaceae, Caodaji (草大戟) of family Leguminosae and Jingdaji (京大戟) of family Euphorbiaceae. Though each plant belongs to a different family, they are all called Daji. By nature, the real Daji described in materia medicas is Jingdaji. However, only Hongyadaji is imported to Japan at present. Jingdaji: the root of Euphorbia pekinensis Rupr. of family Euphorbiaceae. Once, it was used in Jiangsu Prov., Shanghai city and a part of Anwhei Province. In an area of Jiangsu Prov., the root of Indigofera sp. of family Leguminosae is used as Caodaji. | |||||
Last renewal date | 2021/09/27 | |||||