Herb Formulas Notebook

Da Qing Long Tang

Major Blue-Green Dragon Decoction

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Source: Discussion of Cold Damage (c. 220)
Author: Zhang Ji / Zhong-Jing

Category: Formulas that Release the Exterior

Pattern: Taiyang Wind-Cold invasion with Heat from constraint in the Interior

Key Symptoms: Severe fever and chills, absence of sweating, irritability, body pain, superficial oedema with dry skin
Secondary Symptoms: Sensation of a heavy body that comes and goes, cough or wheezing without thirst, desire for warm drinks

Tongue: Maybe red with white coating
Pulse: Floating and lax, or floating and tight

Ma Huang 12g
Xing Ren 6g
Gui Zhi 6g
Zhi Gan Cao 6g
Shi Gao 12-18g
Gan Jiang 9g
Da Zao 3pcs

In UK Shi Gao has to be substituted, although its usual replacement, Zhi Mu, increases fluids so is not appropriate. Maybe Zhi Zi is better.

Ma Huang also has a legal limit of 1.8g per day, with 0.6g per dose. It can be supplemented or substituted with Jing Jie, Fang Feng and Zi Su Ye.

Preparation: Decoction.

Actions: Promotes sweating, released Wind-Cold from the Exterior, clears Interior Heat

Contraindications: Shaoyin patterns, Yang deficiency, Wind-Stroke patterns with deficiency of the Exterior, cases where sweating increases irritability

Research Links:
Science Direct
Google Scholar
Journal of Chinese Medicine
American Dragon

Reference Notes: (click to display)

These pages are intended to assist clinicians and are not intended for self-diagnosis or treatment for which a qualified professional should be consulted.