chang shan

Name: chang shan
Creator: Bencao Index

常山·Radix Dichroae

Dichroa Root

Toxic

Toxicity graded by American Dragon.

About chang shan

Chang Shan (常山) is the root of dichroa, recorded as Radix Dichroae. It is bitter and acrid in flavour and cold in temperature, entering the Heart, Liver and Lung channels. The catalogue files it among the herbs that kill parasites.

Names

Pinyin	chang shan
Chinese	常山
Latin Name	Radix Dichroae
English Name	Dichroa Root
Japanese	jozan
Korean	sangsan

Classification

Category: Kill Parasites
Channels: Lung, Heart, Liver
Flavour: Acrid, Bitter
Temperature: Cold
Part used: Root
Family: Saxifragaceae
Species: Dichroa febrifuga
Tags: Chinese Herbs, Common

Actions and indications

Checks malarial disorders and kills parasites

Malarial disorders with cycles of chills and fever, from a pathogen lodged half in the exterior and half in the interior; a specific herb against the malaria parasite

Induces vomiting to expel Phlegm

Phlegm in the chest
Tan Yin (Phlegm-fluids) gathered in the chest and diaphragm, with fullness of the chest and epigastrium

Combinations

hou po + chen pi + cao guo
Malarial disorders
chai hu + qing hao + ma bian cao
Malarial disorders
huang qi + ren shen + wu mei
Persistent malarial disorders in elderly patients
zhi ban xia + sheng jiang
Counters the nausea that Chang Shan tends to provoke
gan cao + feng mi
Food Stagnation in the Stomach or fluids congested in the chest, by inducing vomiting
chai hu
Malarial disorders
cao guo
Malarial disorders, with protection against vomiting

Dosage

Age	Raw	Granule	Tincture	Concentrate	Frequency
Any 3-10g; Tincture: 2-3ml	3-10 g	—	2-3 ml	—	—

Cautions

caution Classed as toxic: use only under qualified professional supervision, where the benefit is judged to outweigh its expected emetic effect
pregnancy Avoid in pregnancy; several references treat it as a firm contraindication
caution Weak, debilitated, elderly or Qi-deficient patients, for whom its emetic action is too harsh
caution Avoid overdose
caution Avoid chicken and scallions during a course
caution Its toxic effects include nausea, vomiting and diarrhea, and vomiting can occur even at ordinary doses

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