Four Substances Soup is used to treat menstrual disorders, deficiency and stagnation of Ying and Blood (deficiency of blood in the body), and blood deficiency and anemia. Four Substances Soup is composed of four herbs: Angelica sinensis, Rhizoma Ligustici Chuanxiong, Radix Paeoniae Alba, and Radix Rehmanniae Praeparata, which have the effect of tonifying Blood and regulating menstruation. Among them, Radix Rehmanniae Praeparata nourishes Yin and nourishes Blood (nourishing the blood in the body) to fill the essence, Radix Paeoniae Alba nourishes Blood, astringes Yin and harmonizes the camp, Radix Angelicae Sinensis nourishes Blood and activates the Blood to regulate menstruation, and Rhizoma Ligustici Chuanxiong activates the Blood to move Qi and open up depression. These four substances are compatible, tonifying the yin but not greasy, warming but not drying, harmonizing yin and yang, and restoring the Ying and Blood. It is suitable for the regulation of anemia caused by blood deficiency, whitening of the face, mouth and lips, dizziness, fatigue, panic, shortness of breath, insomnia, excessive dreams and other conditions. Four Substance Soup is commonly used by women for the regulation of dysmenorrhea caused by blood deficiency and blood stasis. After identification, it is mostly used in the treatment of women’s menstrual irregularities, dysmenorrhea and other diseases. The adverse effects of Four Substance Soup are not clear, and it is forbidden to take it for Yin deficiency and fever, hematochezia, and qi-degeneration, etc. The drug should be taken according to the doctor’s instructions. The drug should be taken in accordance with the doctor’s instructions, do not take on their own, in order to avoid adverse consequences.