Pinellia ( 半夏 ) ...Chinese Herb...

Latin Plant Name

Pinelliae Ternatae

Pinyin Mandarin Name

Ban Xia

Common English Name


Part of Plant Used





Acrid, poisonous

Meridians Entered

Spleen, Stomach

Common Usages

This herb is used in formulas to treat excess fluids or phlegm in the digestive tract with symptoms such as nausea, vomiting, and diarrhea, with phlegm in vomit or stool; also used to treat excess clear or white phlegm in lungs, where it acts as both an expectorant and a dispersant.

Traditional Usages and Functions

Dries dampness, transforms phlegm, and causes Rebellious Qi to descend; harmonizes Stomach and stops vomiting; dissipates nodules and reduces distension.

Common Formulas Used In

Agastache; Bupleurum and Dragon Bone; Citrus and Pinellia; Hoelen and Polyporus; Major Six Herbs; Minor Bupleurum.

Processing Required




Cautions in Use

Do not use where there is bleeding, coughing due to deficient Yin, or where there are depleted fluids. Use with caution in heat imbalances.

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