Four Nobles or Si Junza Tang – (tonifies chi)
Ginseng (chief herb)
Codonopsis (chief)
Atractylodes (chief, assisting and conducting)
Poria (assisting)
Licorice (supporting)
This formula strengthens the chi, aids digestion, tonifies the spleen chi, strengthens the spleen-pancreas and stomach, and counteracts weakness and fatigue.