Composition] Radix Rehmanniae Preparata 15 Radix Angelicae Sinensis 15 Radix Paeoniae Alba 1 Rhizoma Chuanxiong 8[ Function] Tonifying blood and [Indication] Deficiency and stagnation of blood. Palpitation and insomnia, dizziness, dull complexion, irregular menstruation, scanty menstruation or amenorrhea, manifested as pale tongue and thready or astringent pulse. [Modern application] Modern standardized therapy is used to treat irregular menstruation, fetal diseases, urticaria, orthopedic diseases, allergic purpura, nervous headache, etc. [Fang Jie] The syndrome of deficiency and stagnation of blood in the camp indicates deficiency of blood and difficulty and stagnation of blood circulation. In this prescription, Radix Rehmanniae Preparata nourishes yin, nourishes blood and fills essence, while Radix Paeoniae Alba nourishes blood, converges yin and harmonizes the camp; Angelica sinensis nourishes blood, promotes blood circulation and regulates menstruation, while Ligusticum chuanxiong promotes blood circulation, qi circulation and depression. Four things match, tonify the middle and communicate, nourish yin but not greasy, warm but not dry, harmonize yin and yang, and restore blood circulation. [Addition and subtraction] 1. For dysmenorrhea, 12 Rhizoma Corydalis can be added. For those with qi deficiency, 18 Radix Codonopsis and 183 Radix Astragali can be added. For those with blood deficiency and cold, 4 pieces of processed ginger can be added. 4. If metrorrhagia occurs, 8 Radix Rubiae, 1 Folium Artemisiae Argyi and 1 Colla Corii Asini can be added. (1) On the basis of Siwu Decoction, Colla Corii Asini 1 roasted licorice and 6 Folium Artemisiae Argyi can be added to nourish blood and stop bleeding. Indications: women suffer from exhaustion of chong and ren, metrorrhagia, bleeding, menorrhagia, dripping profusely, etc. (2) Taohong Siwu Decoction is added on the basis of Siwu Decoction: peach kernel 12 safflower 9 is used to nourish blood and promote blood circulation. Indications: women with advanced menstrual period, blood clots, purple and sticky menstruation, abdominal pain, etc.