Tangkuei & Astragalus Combination 當歸補血湯
Rehmannia Vision Formula 明目地黃丸
Important Formula for Painful Purging 痛瀉要方
Bupleurum & Cinnamon Combination 柴胡桂枝湯
Anemarrhena Phellodendron & Rehmannia Formula 知柏地黃丸