Cortex Lycii Radicis


The root cortex of Lycium chinensis Mill. and L barbarum L, family Solanaceae.

The root cortex quilled or groove-shaped, unequal in length, 0.5-1.5 cm broad, 0.1-0.3 cm thick; epidermis grey-yellow, easily exfoliating; endodermis yellow-white to grey-white, with fine longitudinal striae. Light in weight and fragile. Section unsmooth, yellow at the surface and white inside. Bitter and bland in taste, cold in nature, and attributive to lung and kidney channels.

1. Lower asthenic fever: For fever due to yin-deficiency and the late stage of febrile disease with Yin-consumption, manifested as fever high at night and subsided in the morning, hectic fever, night sweat, red and dry tongue without fur, etc., and for infantile malnutrition with fever, usually used together with Rhizoma Anemarrhenae, Carapax Trionycis, etc.
2. Clear away heat and cool the blood: For hematemesis, epistaxis, hemoptysis and hematuria due to blood-heat.
3. Clear away lung-heat: For cough and dyspnea due to lung-heat, usually used together with Cortex Mori Radicis, Radix Glycyrrhizae, Fructus Oryzae Sativae (Powder for Expelling Lung-Heat).
4. Lower blood pressure: For hypertension. In addition, also for tuberculous lymphadenitis, urticaria, allergic purpura, drug rash, allergy to insect bite, etc.

Pharmacological Action
1. Its decoction, infusion, tincture and injection exert a hypotensive effect on anesthetized or unanesthetized animals.
2. Antipyretic. Reducing vaccine-induced fever in rabbits.
3. Its extract lowers serum cholesterol level in rabbits.
4. Its decoction reduces blood sugar level in rabbits.
5. An active component, betaine, possesses a lipocaic effect.

Administration Decoction: 6-12g


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Mr. Wang Tao

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