Crude drug sample data base
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Production area information
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34.6937378
135.50216509999996
Collection information
Japan,Osaka Pref.
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Scientific information data base
Common name | ゲンノショウコ, Gennoshōko, Geranii Herba (JP18), Geranium Herb (JP18) | ||||||
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Synonyms | 玄草 | ||||||
crude drug image |
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Original plant name | Geranium thunbergii Siebold et Zuccarini, (Gennoshōko) | ||||||
original plant image |
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Family name | Geraniaceae | ||||||
Used part | aerial part | ||||||
Quality for selection | Good Gennoshoko has few foreign substances. The stem is purplish brown. (TN) | ||||||
Official compendium | JP XVIII | ||||||
Clinical application | As an astringent and antidiarrheal, Geranii Herba is applied for diarrhea due to colitis and abdominal pain. As a stomachic, it is used as tea. External use of its decoction is for swelling and skin disease. | ||||||
Medical system | Folk medicine | ||||||
Chemical constituent | Other aliphatic and related compounds (*C1): Succinic acid Flavones & Flavonols (*C1): Quercetin, Kaempferol monorhamnoside, Kaempferitrin Hydrolyzable tannins & related compounds (*C1): Geraniin, Ellagic acid, Brevifolin, Undecaacetae corilagin, Nonamethylcorilagin Other aromatic derivatives (*C1): Gallic acid, Protocatechuic acid, Pyrogallol | ||||||
Chemical structure |
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Pharmacological effect | Hypertonia of smooth muscle, suppression of longitudinal muscle movement. Astringent (geraniin). Disinfection (dysentery bacillus typhosus, Salmonella typhi, colibacillus, enteritis). | ||||||
DNA sequence | U77906 | ||||||
Disease | Diarrhea, Constipation, Colitis, Leukorrhea | ||||||
Formulation | |||||||
Related drugs | Laoguancao (see "Remarks") | ||||||
References | JP18: The 18th edition of the Japanese Pharmacopoeia. C1)The Encyclopedia of Wakan-Yaku with Color Pictures Vol. II, pp 24-26. | ||||||
Remarks | There are two kinds of Gennoshōko depending on the color of the flower (white and red). The one with a white flower is more common for medicinal use. It is used regularly as folk medicine and also used as a raw material for domestic medicines. In China, the whole plant, including the fruit, of congeners such as Erodium stephanianum Willd. (Jap. name: Kikubafūro) Geranium wilfordii Maxim. (Jap. name: Mitsubafūro), G. carolinianum L. (Jap. name: Americafūro), and so on are called "Laoguancao" (老鸛草) (Jap. name: Rōkansō). They are used as medicine. | ||||||
Last renewal date | 2023/01/31 | ||||||