Herb Formulas Notebook

Bai Tong Tang

White Penetrating Decoction


Author: Zhang Zhong-Jing, 張仲景

Year: c. 220

Source: Discussion of Cold Damage (Shang Han Lun, 傷寒論)


Category: Formulas that Warm Interior Cold

Pattern: Shaoyin disorder with sinking of Yin and rising of Yang prior to desertion.

Key Symptoms: Diarrhoea, lassitude, cold extremities, flushed face

Pulse: Faint.


Ingredients

Cong Bai 4pcs
Gan Jiang 3g
Sheng Fu Zi 9-15g

Subsitutions:
Currently Sheng Fu Zi is usually substituted for the less toxic Zhi Fu Zi although in the UK both are currently banned. The standard substitution in Gan Jiang and Rou Gui.


Preparation: Decoction.


Actions: Unblocks the Yang and breaks up accumulation of Yin.



Notes:
One liang is taken as 3g in modern sources but in Eastern Han times it was equivalent to 13.875g. This means that the dosages in classical formulae could have been more than 4x what is given today making them far higher than recommended safe dosages today but prompts consideration of what an effective dose may be (He, 2013).



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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.