Di dang tang
jiu da huang 9 tao ren 3 shui zhi 9 di bie chong 9
In tai yang disease, when the body is yellow, pulse is deep and knotted, the lower abdomen is hard, and urination is unsmooth, this indicates that there is no blood. When urination is smooth, and the person is as mad, this is truly a blood pattern, and di dang tang governs.
In the above line we are to assume this is a tai yang pattern but it has progressed to a jue yin level due to excessive sweating and or fluids loss. The urine is smooth because the fluids drop out the bottom because there is no yin to stop the flow.
Break the old blood to make room for the new blood.
Jiu Da Huang, Rhei rhizoma praep is wine washed da huang. Moves blood stasis and purges heat. It disinhibits bowels and cleans the hollow organs of the lower burner. It is much less cold than da huang.
Tao ren, Persicae semen is bitter draining and descending of the stomach domain. It is pungent moving and breaking of liver blood and the ministerial fire in the san jiao.
Tao ren moves blood and transforms stasis in the internal organs, bitter and pungent and disperses stagnation while expelling blood downward. It is used in classic formulas to break through blood stagnation in the lower burner.
Shui zhi, Hirudo is salty softening of hard dried blood in the abdomen and stomach domain. It is bitter downward draining of old blood.
Shui zhi enters the lower burner and breaks blood masses, it expels turbid blood, transforms stasis, and frees vessels and collaterals.
Di bie chong, Eupolyphaga is salty softening of hard dried blood which allows blood to return.
It breaks up dried blood with its salty taste. It is the core insect to clear intense old blood stasis of the liver channel.
Together with jiu da huang it moves blood, transforms stasis and breaks accumulation.