The whole formula mainly treats spleen and lung yang deficiency with phlegm-dampness, as can be seen in Epiphyllum and Dry Ginger with Roasted Licorice (Si-Yi Tang) + Chen Pi and Half-Summer (Er-Chen Tang).

Ran Maidong and Radix Rehmanniae Praeparata have nourishing Yin and sticky products, which are not suitable here.

And the formula is seriously lacking in water-inducing drugs, since the spleen and kidney Yang deficiency phlegm-damp body, warming the spleen and kidney to dispel phlegm-dampness, should give phlegm a way out, so for example, Poria water-inducing drugs can not be missing. Poria is also needed in Er Chen Tang, and Poria is also needed in Sijunzi Tang for strengthening the spleen and stomach. Therefore, the formula needs to be modified.