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半夏 Banxia
Chinese Name |
半夏 |
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Chinese Pinyin |
Banxia |
English Name |
Ternate Pinellia |
Latin Pharmaceutical Name |
Pinelliae Rhizoma |
Category |
Roots and rhizomes
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Origin |
The dried tuberous rhizome of Pinellia ternate (Thunb.) Breit. (Araceae). |
Production Regions |
Primarily produced in Chinese provinces of Gansu, Hubei, Sichuan, Anhui, Jiangsu, Henan, Zhejiang. |
Macroscopic Features |
Sub-spherical, sometimes slightly deviated. Externally white or light yellow, with concave stem scars on the apex, surrounded by dense pox-like root scars. Lower portion is blunt and round and relatively smooth. Firm texture; the fractured surface is clean white and very powdery. faint odor; taste acrid and spicy, numbs the tongue and irritates the throat. |
Quality Requirements |
Superior medicinal material is large, clean, white, firm, and powdery. |
Properties |
Acrid; warm; toxic. |
Functions |
Dries dampness, transforms phlegm, downbears counterflow, relieves vomiting, disperses focal distention, dissipates binds. Apply to damp-phlegm and cold-phlegm, cough with much phlegm, phlegm-fluid retention, palpitations, wind-phlegm and dizziness, phlegm syncope and headache, vomiting and stomach reflux, gastric stuffiness, plum-pit-qi; externally used for painful and swollen phlegm nodes. |
Processed Form |
Fa ban xia: sub-spherical or broken irregular granules, externally pale yellowish-white, yellow or brownish-yellow, loose brittle or hard brittle texture; fractured surface is yellow or pale yellow; granule is relatively harder. faint odor, taste bland and slightly sweet, slightly numbs the tongue. Acrid, warm; spleen, stomach, lung tropism. Dries dampness, transforms phlegm. Cough with much phlegm, phlegm-fluid retention, wind-phlegm and dizziness, phlegm syncope and headache. Jiang ban xia: schistose, irregular granule or sub-spherical. Externally brown to dark brown. Brittle texture; fractured surface is pale yellowish-brown, with horny luster. faint aromatic odor; taste bland, slightly numb the tong, sticky when chewed. Acrid; war; spleen, stomach, lung tropism. Warms the middle, disperses phlegm, downbears adverse-raising, and stops vomiting; phlegm-fluid retention and vomiting, abdominal stuffiness. Qing ban xia: oval, sub-sphereical or irregular flates. Fractured surface is pale gray to grayish-white, with grayish-white points or short-line vascular bundle scars. Some remnants phloem with pale purple red spots lower. Brittle texture, easily break; fractured surface is slightly horny. faint odor; taste slightly astringent and slightly numb the tongue. Acrid; warm; spleen, stomach, lung tropism. Dries dampness, transforms phlegm, cough with moisture phlegm, abdominal stuffiness, coagulation of phlegm not cough up. |
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Permanent URL:https://sys01.lib.hkbu.edu.hk/cmed/mmid/detail.php?pid=B00132
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