Flos Genkwa


The flower bud of Daphne genkwa Sieb. et Zucc., family Thymeiaeaceae.

Buds curved and short, club-shaped, 1.0-1.7 cm long, 1.5 mm in diameter, 3-7 clustered at the rachis; the lower portion of the perianth cylindrical, and the upper portion 4-lobed; light purple to yellow-green and pubescent. Acrid and bitter in taste, warrn in nature, toxic, and attributive to lung, kidney and large intestine channels.

1. Purge and eliminate the retention of phlegrn: For sthenia syndrome with hydrothorax, ascites, edema and retention of phlegm, used together with Radix Euphorbiae Kansui and Radix Euphorbiae Pekin ensis.
2. Eliminate the phlegm and relieve cough: For acute and chronic cough. Recently, also used for chronic bronchitis, psychosis and epilepsy.

Pharmacological Action
1. Diuretic. Oral use of its decoction increases urinary volume by 7-13% in rats within 5 hours.
2. Its diuretic effect is decreased and its toxicity increased when it is used together with Radix Euphorbiae Pekinensis and Radix Glycyrrhizae.
3. Its alcoholic extract or one of its components hydroxy-genkwanin is an antitussive and expectorant.
4. Intrauterine application of another component yuanhuacine can induce abortion.
5. Bacteriostatic.

Administration Decoction: 1-3g; 3-6g daily for psychosis and epilepsy.
Powder or Pill: 0.25-0.5g 2-3 times daily.

This medicine may cause dizziness, headache, pain of the limbs, vomiting, abdominal pain and buming pain of the stomach. Contraindicated for pregnant women and persons with general debility.


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Mr. Wang Tao

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