Rhizoma Phragmitis


The fresh or dried rhizome of Phragmites communis Trin., family Gramineae.

Rhizome long-terete, the dried sample flattened, unequal in length, 1-2 cm in diameter; yellow-white to dull yellow in colour, the surface lustrous; nodes obvious, with relic fibrous root scars and buds. The section is hollow, and with a thin wall and an annular vessel pore. Sweet in taste, cold in nature, and attributive to lung and stomach channels.

1. Clear away heat and promote the production of fluid: For febrile diseases or those with thirst and consumption of body fluid.
2. Clear away stomach-heat and stop vomiting: For stomach-heat syndrome with vomiting and hiccup.
3. Clear away lung-heat to relieve cough: For cough of lung-heat type and pulmonary abscess.
4. Open the inhibited lung energy and let out the skin eruption: For common cold of wind-heat type, and initial stage of measles with incomplete eruption.
5. Promote diuresis: For febrile disease with oliguria and reddish urine, and stranguria of heat type.

Pharmacological Action
Coixol and asparagine are two active components and possess antipyretic, antidiptic and antemetic effects.

Administration Decoction: 15-30g.


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Mr. Wang Tao

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