Pinellia Tuber (Banxia)
|Pharmaceutical Name:||Rhizome Pinelliae|
|Botanical Name:||Pinellia ternate (Thunb.) Breit.|
|Common Name:||Pinellia tuber|
|Source of Earliest Record:||Shennong Bencao Jing|
|Part Used & Method for Pharmaceutical Preparations:||The tuberous rhizomes are dug in the period between summer and autumn. After the bark and fibrous roots have been removed, the rhizomes are dried in the sun.|
|Properties and Taste:||Pungent, warm and toxic|
|Meridian:||Spleen, stomach and lung|
|Functions:||To dry dampness and resolve phlegm
To conduct rebellious qi downward and stop vomiting
To reduce distension and disperse nodules
|Indications and Combinations:||1. Phlegm-damp cough due to deficient spleen manifested as cough with profuse, dilute and white sputum.
*Use with Tangerine peel (Chenpi) and Poria (Fuling) in the formula Erchen Tang.
2. Nausea and vomiting due to rebellious stomach qi:
a) Stomach cold type.
*Use with Fresh ginger (Shengjiang) in the formula Xiao Banxia Tang.
b) Stomach heat type.
*Use with Bamboo shavings (Zhuru) and Loquat leaf (Pipaye).
c) Pregnancy type.
*Use with Perilla stem (Sugeng) and Amomum fruit (Sharen).
d) Stomach weakness type.
*Use with Ginseng (Renshen) and Jujube (Dazao).
3. Globus hystericus due to qi stagnation and accumulation of phlegm-damp manifested as a feeling of having a foreign body in the throat, fullness and distension in the chest and epigastric region and nausea.
*Use with Magnolia bark (Houpo), Perilla leaf (Zisuye) and Poria (Fuling) in the formula Banxia Houpo Tang.
4. Goiter, scrofula and subcutaneous nodule.
*Use with Laminaria (Kunbu), Seaweed (Haizao) and Tendrilled fritillary bulb (Chuanbeimu).
|Cautions:||This herb is contraindicated in cases with dry cough due to deficient yin, or cough due to phlegm-heat. Also, it cannot be used together with the herb Sichuan aconite root (Wutou).|