Da Qing Ye (大青叶) is the leaf of woad, recorded as Folium Isatidis. It is bitter and salty in flavour and cold in temperature, entering the Heart, Lung and Stomach channels. The catalogue files it among the herbs that clear Heat and relieve toxicity.

Pinyin

da qing ye

Chinese

大青叶·大青葉

Latin Name

Folium Isatidis

English Name

Isatis Leaf·Isatis Leaf:Woad Leaf·woad root

Japanese

taiseiyo

Korean

daecheongyeop

Actions and indications

Clears Heat and resolves Fire toxicity

Warm febrile disease: high fever with thirst and irritability, and a scarlet tongue
Pneumonia
Severe epidemic Fire toxin that affects everyone, whatever their constitution
Fire toxin (Chuang Yung) anywhere in the body, above all in the Lungs and throat, including a sore, swollen throat
Throat Bi and ulcers in the mouth
Skin eruptions from Heat toxin, erysipelas-like redness and swellings, applied topically

Cools the Blood and dissipates maculae

Dark purple or crimson blotches and rashes from intense Blood Heat, its particular strength
Very high fever with irritability and altered consciousness
Gallbladder Heat
Vomiting of blood

Clears Heat toxin from the head and upper body

Mumps
Sores of the mouth and tongue
Red, swollen eyes

Combinations

jin yin hua

Sore throat, mumps, erysipelas or sores from toxic Heat

jin yin hua + jing jie + niu bang zi

External Wind-Heat with fever, irritability, thirst and sore throat; early-stage febrile disorders

shi gao + xuan shen + sheng di huang

Heat toxin in warm pathogen disease with Fire blazing at the Qi, Ying and Blood levels together, with high fever, maculae and at times clouded consciousness

she gan

Heat causing any kind of throat swelling and pain, including acute tonsillitis and diphtheria

she gan + shan dou gen

Heat causing any kind of throat swelling and pain, including acute tonsillitis and diphtheria, with a stronger effect

dan shen

Cholecystitis and hepatitis, with or without jaundice

dan shen + yu jin + long dan cao

Cholecystitis and hepatitis, with or without jaundice, with a stronger effect

dan shen + tao ren + hong hua + bie jia

Sub costal mass.

sheng ma + xuan shen + jin yin hua

Severe mouth ulcers; throat Bi

shui niu jiao + zhi zi

Blood Heat with maculae, nosebleed and bleeding gums

yin chen hao + da huang

Jaundice.

huang qin + ban lan gen

Parotitis.

zhi mu + shi gao + zhi zi

Heat in the Blood.

Age

Raw

Granule

Tincture

Concentrate

Frequency

Any 9-30g; In decoction 60 gm. if fresh; Tincture: 2-5ml

9-30 g

—

2-5 ml

—

Cautions

contraindication Cold from Spleen and Stomach deficiency: this very cold herb can bring on loose stools, poor appetite, and cold and fullness in the abdomen

contraindication No true Heat pattern, including chronic, deficient or Cold presentations

caution Not for prolonged use; it is traditionally given in short courses for acute illness

pregnancy Pregnancy: use only under a qualified practitioner, because the herb is so cold

paediatric Children: use only under a qualified practitioner, because the herb is so cold

da qing ye

About da qing ye

Names

Classification

Actions and indications

Clears Heat and resolves Fire toxicity

Cools the Blood and dissipates maculae

Clears Heat toxin from the head and upper body

Combinations

Dosage

Cautions

Interactions

Drug interactions