qing dai

青黛·Indigo Naturalis

Indigo

About qing dai

Qing Dai (青黔) is natural indigo, a pigment prepared from the leaves of indigo-bearing plants, recorded as Indigo Naturalis. It is salty in flavour and cold in temperature, entering the Liver, Lung and Spleen channels. The catalogue files it among the herbs that clear Heat.

Names

Pinyinqing dai
Chinese青黛
Latin NameIndigo Naturalis
English NameIndigo·Indigo Naturalis·natural indigo
Japaneseseitai
Koreancheongdae

Classification

Category
Clear Heat
Channels
Lung, Spleen, Liver
Flavour
Salty
Temperature
Cold
Family
Acanthaceae
Species
Baphicacanthus Cusia
Tags
Chinese Herbs, Common

Actions and indications

Clears Heat, resolves Fire toxin, cools Blood and reduces maculae

  • Blotches or purpura from Heat at the Blood level
  • Reckless bleeding from Blood Heat, particularly nosebleed; may be used alone
  • Blood in the phlegm, or blood coughed up or vomited

Clears Heat, resolves Fire toxin, cools Blood, disperses stagnation and reduces swelling

  • Blazing Heat with an inflamed throat, difficulty swallowing, mouth sores or mumps, taken internally or applied
  • Skin infections and lesions from Heat toxin

Drains Liver Fire, clears Summerheat and extinguishes Wind to stop tremor

  • Heat, particularly Summerheat, affecting the Liver: convulsions, red eyes, sore throat and similar signs
  • Febrile or childhood convulsions and spasm when Heat stirs Liver Wind

Clears Liver Fire, drains Lung Heat and cools Blood

  • Cough from Lung Heat
  • Liver Fire assailing the Lung, producing coughing, pain in the chest and phlegm streaked with blood

Combinations

Dosage

AgeRawGranuleTinctureConcentrateFrequency
Any 1.5-3g; Use in pill or powdered form and add to strained decoction1.5-3 g

Cautions

Interactions

Drug interactions