Individual Herbs Notebook

Zao Shu Pi

Translation: Soap Bark

Pharmaceutical: Cortex Quillajae saponariae
Taxonomy: Quillaja saponaria

Other names: Soapbark

Category: Herbs that Transform Phlegm



Properties: Bitter, slightly toxic

Meridans Entered:
Primary: Lung


Traditional Actions/Indications:
  1. Dispels Wind, eliminates Dampness and kills parasites
    External use for various skin diseases
  2. Dispels Phlegm
    Internally for cough with thick phlegm. It stimulates production of watery mucus enabling expectoration through coughing.

Suggested Daily Dosage: 0.5-1.5g internally, usually cold extracted overnight or added to a decoction after removing from the heat and being left to cool down. Externally can be extracted and used as a wash.


Cautions: Overdose can cause breakdown of red blood cells and severe irritation to the digestive tract leading to cramps, nausea, vomiting, and diarrhoea. Avoid contact with the eyes if used externally and it may cause irritation to the skin.


Notable Constituents:
Does not appear in any formulae listed on this site
Research Links & References: (click to display)