Radix Scrophulariae


Root of Scrophularia ningpoensis Hemsl., family Scrophulariaceae.

Root cylindroid or more slender at two ends, some curved; 6-20 cm long, 1-3 cm in diameter; surface grey-yellow with transverse lenticels and vertical wrinkled grooves. Prepared as crosscut pieces; black, with radial striae. Tough in texture, with a smell of burnt sugar. Sweet, bitter and salty in taste, slightly cold in nature, and attributive to lung, stomach and kidney channels.

1. Clear away heat, cool the blood, nourish yin and nioisturize dryness: For seasonal febrile diseases involving yingfen and xuefen with restlessness, thirst and eruptions, febrile diseases consuming yin with thirst, insomnia, constipation and dry, red tongue, lung-heat syndrome with dry cough or hemoptysis, diabetes, etc.
2. Purge the sthenic fire, clear away toxic material, soften the hard lumps and disperse the stagnation: For intense heat-syndrome or yin-deficiency syndrome with sorethroat, diphtheria, etc., usually used together with Radix Rehmanniae, Radix Ophiopogonis, Radix Scuteliariae, Fructus Forsythiae; for subcutaneous nodes due to phlegm fire, scrofula and goiter, used together with Bulbus Fritillariae Thunbergil and Concha Ostreae. In addition, for gangrene of finger or toe, used together with Radix Angelicae Sinensis, Flos Lonicerae and Radix Glycyrrhizae.

Pharmacological Action
1. Its alcoholic extract and its component methoxycinnamic acid can lower the typhoid vaccine-induced fever in rabbits.
2. Its water or alcoholic infusion and decoction exert a mild hypotensive effect on anesthetized animals.
3. Lowering the level of blood sugar. Its infusion inhibits the growth of some dermatornyces.

Administration Decoction: 9-30g.


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Mr. Wang Tao

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