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| Common name | ホミカ(馬銭子), Maqianzi, Strychni SemenJP,CP, Nux VomicaJP,CP |
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| Original plant name | Strychnos nux-vomica Linn. |
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| original plant image | |
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| Family name | Loganiaceae |
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| Used part | mature seed |
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| Official compendium | JP XIX, CP (2025 ed.) |
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| Clinical application | It is used as a bitter stomachic and analgesic agent, in the form of an extract or tincture, for gastrointestinal atony and dyspepsia. |
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| Medical system | Traditional Chinese medicine |
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Drug effect in traditional medicine | Traditional classification | External drugs |
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| Beneficial effect | [Property and Flavor] Warm; bitter; highly toxic.
[Meridian Tropism] Lung and spleen meridians.
[Actions] To unblock the collaterals to relieve pain, dissipate bmds and disperse swelling.
[Indications] Injuries from falls and fights, swelling and pain caused by fracture, wind-dampness stubborn impediment, numbness, paralysis, abscesses and cellulitis, sore and toxin, swelling and sore of throat. |
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| Chemical constituent | Lipids (*C1):
脂肪油/fat oil
Monoterpenoids (*C1):
Loganin
Tannins (*C1):
Caffeetannin
Indole alkaloids (*C1):
Strychnine, Brucine, Vomicine, alpha-Colubrine, beta-Colubrine, Pseudostrychnine, Pseudobrucine, Struxine
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| Chemical structure | |
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| Pharmacological effect | Central excitation (strychnine). |
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| DNA sequence | L14410 |
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| Disease | Swelling and pain of joint, Cramp, Numbness, Swelling and pain due to contusion, Swelling and pain of the throat, Pyogenic dermatosis |
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| Formulation | Nux Vomica Extract, Nux Vomica Extract Powder, Nux Vomica Tincture, Compound Nux Vomica Extract and Diastase |
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| References | JP: The 19th edition of the Japanese Pharmacopoeia.
CP: Pharmacopoeia of the People's Republic of China 2025 edi.
C1) The Encyclopedia of Wakan-Yaku with Color Pictures Vol. I, pp 331-333. |
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| Remarks | It is used as a raw material for the production of strychnine nitrate (a central nervous system stimulant). |
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| Last renewal date | 2026/07/14 |
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