Crude drug sample data base

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Crude drug name

Market nameジュウヤク
Formal name十薬，魚腥草
Japanese nameじゅうやく, Jūyaku（どくだみ, Dokudami）, ぎょせいそう, Gyoseisō
Vernacular nameJūyaku, Yuxingcao
Latin nameHouttuyniae Herba (JP), (CP)
English nameHouttuynia Herb (JP), Heartleaf Houttuynia Herb (CP)
Original plant nameHouttuynia cordata Thunb., (Dokudami)
Family nameSaururaceae
Used partClassificationPlant origin
Sub classification aerial part
Collection informationJapan, Osaka Pref., Tochimoto Tenkaido Co., Ltd.
Collection date2007/5/15
CollectorKatsuko Komatsu
TMPW No.25459

The capital city, provincial capital city or the representative　　
location of its administrative area is indicated.　　
Production area information
https://ethmed.toyama-wakan.net/img/pin_san.png
34.6937378
135.50216509999996
Collection information
Japan,Osaka Pref.
https://ethmed.toyama-wakan.net/img/pin_nyu.png

Scientific information data base

Common name十薬（魚腥草）, Jūyaku (Yuxingcao), Houttuyniae Herba (JP18, CP2020), Houttuynia Herb (JP18), Heartleaf Houttuynia Herb (CP2020)
Synonyms魚腥草 (Yuxingcao)
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Original plant nameHouttuynia cordata Thunberg, (Dokudami)
original plant image
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Family nameSaururaceae
Used partaerial part in flower season
Quality for selectionGood Jūyaku is fresh. The leaves remain green even after dried. (TN)
Official compendiumJP XVIII, CP (2020 ed.)
Clinical applicationAs an antifebrile, antidote, antiinflammatory and diuretic agent, Jūyaku is applied for carbuncles, sore, anal prolapse, hemorrhoids and insect poison. In Japan, it is used for constipation, cold and empyema by decoction, and the raw leaf is for hemorrhoids, swelling and lumbago, as the medical plaster or bath agent.
Medical systemTraditional Chinese medicine
Drug effect in
traditional medicine		Traditional
classification		Febrifugal and detoxicant drugs
Beneficial effect[Property and Flavor] Mild cold; pungent.
[Meridian Tropism] Lung meridian.
[Actions] To clear heat and remove toxin, disperse abscesses and expel pus, disinhibit urine and relieve stranguria.
[Indications] Lung abscess with pyemesis, phlegm-heat panting and cough, heat dysentery, heat strangury, swelling abscess, sore and toxin.
Chemical constituentOther aliphatic and related compounds
(*C1, *C2):
Decanoylacetaldehyde, Lauryl aldehyde(=n-Dodecanal), Methyl-n-nonyl ketone, Capryl aldehyde, 3-Ketodecanal

Monoterpenoids
(*C1):
Myrcene

Flavones & Flavonols
(*C1):
Quercitrin, Isoquercitrin, Afzerin

Sulfur containing compounds
(*C1):
Methyl lauryl sulfide

Others
(*C1):
K塩

Chemical structure



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Pharmacological effectQuercitrin: cardiologic, increase in the blood pressure, dilation of renal blood vessel, antibacterial (fungus). Houttuynia Herb extract: diuresis, miosis, decrease in the blood pressure. The extract of ethyl acetate inhibits 3alpha-hydroxysteroid dehydrogenase activity. Quercetin is the strongest component which has that kind of action.
DNA sequenceAF203629, AF206929, L08762, L24147
Classical reference
(Chinese Herbal Classic "Zhenglei bencao")		※Click this image to see the actual image
DiseaseLung suppurations, Pyogenic dermatosis, External hemorrhoid, Dysuria, Urodynia, Diarrhea, Tenesmus
Formulation
ReferencesJP18: 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 35-36.
C2) Outline of Pharmacognosy, a Textbook, p 300.
RemarksRaw leaves are also used folklorically. It is called Yuxingcao in China, and Jūyaku or Dokudami in Japan. It is taken as food in Sichuan Prov., China and Vietnam.
Last renewal date2021/09/27
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