Crude drug sample data base
※Click on the image to enlarge it.
Crude drug name | Market name | 苦木 |
|---|---|---|
| Formal name | 苦木 | |
| Japanese name | にがき, Nigaki | |
| Vernacular name | Nigaki | |
| Latin name | Picrasmae Lignum (JP), Picrasmae Ramulus et Folium (CP) | |
| English name | Picrasma Wood (JP), Indian Quassiawood (CP) | |
| Original plant name | Picrasma quassioides Bennet , (Nigaki) | |
| Family name | Simaroubaceae | |
| Used part | Classification | Plant origin | Sub classification | wood |
| Collection information | Japan, Tokyo , Uchida Wakanyaku Co.,Ltd. | |
| Collection date | 2011/11/15 | |
| Collector | Hirotoshi Fushimi | |
| TMPW No. | 27543 | |
The capital city, provincial capital city or the representative
location of its administrative area is indicated.
location of its administrative area is indicated.
Production area information
https://ethmed.toyama-wakan.net/img/pin_san.png
35.6894875
139.69170639999993
Collection information
Japan,Tokyo
https://ethmed.toyama-wakan.net/img/pin_nyu.png
Scientific information data base
| Common name | 苦木, Kumu, Picrasmae Lignum (JP18), Picrasmae Ramulus et Folium (CP2020), Picrasma Wood (JP18), Indian Quassiawood (CP2020) | ||||
|---|---|---|---|---|---|
| crude drug image |
| ||||
| Original plant name | Picrasma quassioides Bennet , (Nigaki) | ||||
| original plant image |
| ||||
| Family name | Simaroubaceae | ||||
| Used part | wood (without bark) | ||||
| Quality for selection | Good Kumu has a strong bitterness and no contamination of bark. (TN) | ||||
| Official compendium | JP XVIII, CP (2020 ed.) | ||||
| Clinical application | As an amaroid stomachic, its powder, tink or decoction is used to treat indigestion, diarrhea and gastroenteritis. It is also insecticidal and good for scabies. | ||||
| Medical system | Traditional Chinese medicine | ||||
| Drug effect in traditional medicine | Traditional classification | Febrifugal and detoxicant drugs | |||
| Beneficial effect | [Property and Flavor] Cold; bitter; slighlty toxic. [Meridian Tropism] Lung and large intestine meridians. [Actions] To clear heat and remove toxin, and dispel dampness. [Indications] Common cold caused by wind-heat, swollen sore throat, dampness-heat diarrhea and dysentery, eczema, sore an d deep-rooted boil, bite wound of insect, worm or snake. | ||||
| Chemical constituent | Triterpenoids (*C1): Nigakilactone A, Nigakilactone B, Nigakilactone C, Nigakilactone D(=Quassin), Nigakilactone E, Nigakilactone F, Nigakilactone G(= Picrasin A), Nigakilactone H, Nigakilactone I, Nigakilactone J, Nigakilactone K, Nigakilactone L, Nigakilactone M, Nigakilactone N, Nigakihemiacetal A, Nigakihemiacetal C, Neoquassin, Picrasin A, Picrasin B, Picrasin C, Picrasin D, Picrasin E, Picrasin F, Picrasin G Benzoquinones (*C1): 2,6-Dimethoxy-p-benzoquinone Indole alkaloids (*C1): Nigakinone, Methylnigakinone, 4,5-Dimethoxycanthin-6-one, beta-Carbolin 誘導体/derivatives | ||||
| Chemical structure |      
※画像をクリックすると、拡大して表示されます。 | ||||
| Disease | Dyspepsia, Diarrhea, Gastroenteritis | ||||
| Formulation | |||||
| Related drugs | Jamaica quassia, Surinam quassia | ||||
| References | JP18: The 18th edition of the Japanese Pharmacopoeia. CP2020: Pharmacopoeia of the People's Republic of China 2020 edi. C1)The Encyclopedia of Wakan-Yaku with Color Pictures Vol. II, pp 177-178. | ||||
| Remarks | Jamaica quassia is the heart wood of Picrasma excelsa Planchon (Jap. name: Jamaicanigaki). Surinam quassia is the heart wood of Quassia amara L. Both are used as an amaroid stomachic. In Japan, Kumu is substituted for these Quassiae Lignums. The branch and leaf are used for removing toxic heat in China. | ||||
| Last renewal date | 2021/09/27 | ||||
