Radix Puerariae


Root of Pueraria lobata (Wilid.) Ohwi, family Leguminosae,

Root stoutly cylindrical. Prepared by cutting obliquely, longitudinally or transversely. Section surface coarse and strongly fibrous; cross section showing concentric circular fibres. Sweet and acrid in taste, cool in nature, and attributive to spleen and stomach channels.

1. Expel the evil factors from superficies and muscles: For common cold with fever, headache, stiffness and pain of nape and back.
2. Let out the skin eruptions: For measles and macule rash and other eruptive diseases with incomplete eruption, usually used together with Rhizoma Cimicifugae
3. Lift the lucid yang to ease the upper orifices, and arrest diarrhea: For sudden deafness and blindness (such as central retinitis) due to failure of rising of lucid yang; for diarrhea due to spleen deficiency, used together with Radix Cbdonopsis Piiosuiae, Rhizoma Atractylodis Macrocephalae, etc.; for diarrhea of dampness-heat type, used together with Rhizoma Coptidis, Radix Scuteliariae, etc.
4. Promote the production of body fluid ficial heat-syndrome with thirst, febrile sumption, spleen deficiency with thirst, for hemicrania, stiff neck, hypertensive and coronary heart disease. to quench thirst: For superdisease with body fluid conand diabetes. Recently, used headache, neck pain, tinnitus

Pharmacological Action
1. Its active component, daidzein, can dilate the coronary and cerebral arteries.
2. Its decoction and extract are mild hypotensives.
3. Oral administration of its extractum reduces vaccine-induced fever in rabbits.
4. Antispastic.
5. Its oral preparation is an anticonceptive in mice.

Administration Decoction: 6-20g.


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Mr. Wang Tao

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