Crude drug sample data base

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Crude drug name

Market name芫花
Formal name芫花
Japanese nameげんか, Genka
Vernacular nameYuanhua
Latin nameGenkwa Flos (CP)
English nameLilac Daphne Flower Bud (CP)
Original plant nameDaphne genkwa Sieb. et Zucc., (Fujimodoki)
Family nameThymelaeaceae
Used partClassificationPlant origin
Sub classification flos
Collection informationHong Kong, Wing Tai Hong Medicine Co.,Ltd.
Collection date1974/12/25
TMPW No.2224

Scientific information data base

Common name芫花, Yuanhua, Genkwa Flos (CP2020), Lilac Daphne Flower Bud (CP2020)
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Original plant nameDaphne genkwa Siebold et Zuccarini, (Fujimodoki, (Chōjizakura))
original plant image
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Family nameThymelaeaceae
Used partflos
Quality for selectionYuanhua consists of only floses harvested before flowering. Good Yuanhua has well ordered floses, strong bitterness and fragrance. (NI)
Official compendiumCP (2020 ed.)
Clinical applicationAs a hypercathartic, diuretic and expectorant, Yuanhua is applied for cardiac asthma, anasarca, gastric or duodenal ulcer. Contraindicated for person with a weak constitution and pregnant women.
Medical systemTraditional Chinese medicine
Drug effect in
traditional medicine
Traditional
classification
Purgatives for removing water retention
Beneficial effect[Property and Flavor] Warm; bltter and pungent; toxic.
[Meridian Tropism] Lung, spleen and kidney meridians.
[Actions] To expel retained fluid by purgation; external application: to kill worms to treat sore.
[Indications] Edema distention and fullness, hydrothorax and ascites, phlegm-fluid retention, aggregation and accumulation, cough and panting caused by qi counterflow, inhibited of defecation and urination; External application: scabies and tinea, favus, swelling abscess, frostbite.
Chemical constituentSterols
(*C1):
Sitosterol

Flavones & Flavonols
(*C1):
Genkwanin, Apigenin, Hydroxygenkwanin

Other aromatic derivatives
(*C1):
Benzoic acid

Pharmacological effectAntifungal (water leaching: cutaneous fungus). Diuresis (decoction). Decrease in the blood pressure, uterine contraction, hyperpnea (genkwanin). Antiussive, expectorant (hydroxygenkwanin).
DNA sequenceAF022132
Classical reference
(Chinese Herbal Classic "Zhenglei bencao")
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DiseaseAscites, Edema, Oliguria, Constipation, Pleural effusion, Cough, Chest pain, Pain of lateral sides of trunk, Head trichophytosis, Roundworm
Formulationrarely used in formula
ReferencesCP2020: Pharmacopoeia of the People's Republic of China 2020 edi.
C1)The Encyclopedia of Wakan-Yaku with Color Pictures Vol. II, p 112.
RemarksYuanhua is often used together with Raohua, the flos of Wikstroemia chamaedaphne Meissn.
Last renewal date2021/09/27