Da Qing Ye (Isatidis Folium)

Da Qing Ye (大青葉), the leaf of Isatis, strongly clears heat and resolves toxicity and cools the blood, used for high fever, delirium and dark heat rashes in warm febrile disease.

Dà Qīng Yè  ·  大青葉

Latin / Pharmaceutical Name

Isatis indigotica (Folium Isatidis)

Common English Name

Isatis leaf

Taste

Bitter

Temperature

Very cold

Channels Entered

Heart, Stomach

Actions & Functions

  • Clears heat and resolves toxicity
  • Cools the blood and reduces heat rashes

Indications

Warm febrile disease with high fever and delirium; dark, purple heat rashes; and toxic sore throat and mouth ulcers.

Dosage

9-15 g in decoction.

Common Combinations

With Xuan Shen and Sheng Di for heat in the blood with rashes.

Cautions & Contraindications

Very cold; avoid in Spleen-Stomach deficiency-cold.

About Attilio

Doctor of Chinese medicine, acupuncture expert and author of My Fertility Guide and My Pregnancy Guide.

Check Also

PubMed research

Acupuncture Shows Sustained Benefits for Chronic Daily Headache Prevention in Adults, Meta-Analysis Finds

Research summary (Acupuncture): Utility of Acupuncture Therapy for Adult Chronic Daily Headache Prophylaxis: A Systematic Review and Meta-Analysis. - Medical science monitor : international medical journal of experimental and clinical research, 2026.