Radix Rehmanniae


Root of Rehinannia glutinosa Libosch., family Scrophutariaceae, Prepared by steaming it with wine and drying repeatedly.

Root irregular masses, varying in size, dark and lustrous. Soft and sticky in texture. Sweet and slightly bitter in taste, slightly warm in nature, and attributive to heart, liver and kidney channels.

1. Produce essence and enrich blood: For insufficiency of essence and blood manifested as sallow complexion, fatigue, dizziness, palpitation, menoxenia and metrorrhagia.
2. Nourish yin and moisturize dryness: For deficiency of liver-yin and kidney-yin manifested as hectic fever, night sweat, emission and diabetes, usually used together with Fructus Corni and Rhizoma Dioscoreae; also used for prurigo due to dryness of blood, muscular spasm due to blood-deficiency or yin-deficiency, and constipation due to insufficiency of body fluid and blood.
3. Invigorate the liver and kidney: For backache with knee aching due to deficiency of liver and kidney, such as chronic lumbar strain, hyperplasia of lumbar vertebra, etc.; for endemic osteoarthritis deformans, usually used together with Herba Cistanches; also for dyspnea and chronic cough of kidney-deficiency type. Recently used singly for hypertension and hypercholesterinemia.

Pharmacological Action
1. Exerting an anti-exudative and anti-inflammatory effect on inflammatory granulation in rats.
2. Cardiotonic, hypotensive and diuretic.
3. Catalpol, one of its active components, is an anti-diabetic.

Administration Decoction: 10-30g.

Contraindicated for those with loose stools and accumulation of dampness.


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Mr. Wang Tao

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