1. Taohong Siwu Decoction is composed of six herbs: peach kernel, safflower, angelica, raw rehmannia, peony, and Chuanxiong. This prescription is derived from the prescription of "Yizong Jinjian". In fact, this recipe is made of Siwu Decoction plus peach kernels and safflower. Siwu Decoction is composed of angelica root, raw rehmannia root, peony root, and Ligusticum chuanxiong. It is a classic prescription of traditional Chinese medicine for nourishing and replenishing blood. It has the effect of nourishing blood and promoting blood circulation. After adding peach kernel and safflower, it becomes a prescription that pays equal attention to promoting blood circulation and nourishing blood. Prescription, and "blood stasis" can be used as a pathogenesis core of this prescription. Traditional Chinese medicine believes that "if blood stasis is not removed, new blood will not be generated", so it is suitable for blood deficiency syndrome with blood stasis. Angelica sinensis in this prescription nourishes and activates blood, mainly nourishing blood.

2. Raw rehmannia nourishes yin and promotes blood; peony nourishes blood and nourishes nutrients; Ligusticum chuanxiong is the "qi medicine in the blood", so this prescription can nourish blood without leaving blood stasis; peach kernel and safflower are powerful blood-activating agents. It is a blood-breaking drug, so this prescription is characterized by removing blood stasis and regenerating blood.