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| Common name | 延命草, Emmeisō, Isodonis Herba (Non-JPS2022), Isodon Herb (Non-JPS2022) |
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| Original plant name | Isodon japonicus Hara1 (Plectranthus japonicus Koidzumi, Rabdosia japonica Hara) or Isodon trichocarpus Kudo2 (Plectranthus trichocarpus Maximowicz,Rabdosia trichocarpa Hara), (Hikiokoshi1, Kurobanahikiokoshi2) |
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| Family name | Labiatae |
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| Used part | aerial part |
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| Official compendium | Non-JPS (2022) |
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| Clinical application | As an amaroid stomachic, it is applied to treat indigestion, lack of appetite and abdominal pain. It substitutes Japanese Gentian and Swertia Herb. |
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| Medical system | Folk medicine |
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Drug effect in traditional medicine | Traditional classification | Japan |
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| Chemical constituent | Diterpenoids R. japonica (*C1):
Enmein, Nodosin, Isodocarpin, Isodotricin, Isodonal, Epinodosin, Sodoponin, Epinodosinol
R. trichocarpa (*C1):
Enmein, Nodosin, Isodocarpin, Isodotricin, Isodonol, Enmedol, Enmenol, Enmenin, Enmelol, Ememodin, Trichorabdal A
R. lasiocarpa (*C1):
Lasiokaurin, Lasiodonin, Oridonin, Lasiokaurinol, Lasiokaurinin
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| Chemical structure | |
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| Pharmacological effect | Antibacterial (oridonin, enmein, lasiokaurin:Gram-positive).Antiulcer (oridonin, enmein, lasiokaurin). Elimination of Helicobacter pylori in the stomach (trichorabdal A). |
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| Disease | Dyspepsia, Anorexia, Abdominal pain |
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| Formulation | |
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| References | Non-JPS2022: The Japanese standards for non-Pharmacopoeial crude drugs 2022.
C1)The Encyclopedia of Wakan-Yaku with Color Pictures Vol. II, pp 18-20. |
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| Remarks | Emmeiso is a Japanese folk medicine. According to "Wakansansaizue" ("hoso" class of Vol. 93rd): Emmeiso is the common name of "Hikiokoshi". "Hikiokoshi" means reviving the dead. The legend has it that "Kobodaishi", a Japanese great priest, immediately rescued a dying person from abdominal pain by applying Emmeiso in the mountains. After that, people became aware of the benefit of the plant and named it Emmeiso that means life-prolonging grass. |
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| Last renewal date | 2022/07/19 |
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