Four Substance Soup is a common clinical blood tonic, with the effect of tonifying and regulating blood, for the treatment of blood deficiency and stagnation (blood deficiency in the body), the symptoms of dizziness, palpitations, insomnia, colorless, or women’s menstrual disorders, low volume or menstrual closure, umbilical abdomen for pain, and so on. In this formula, Radix Rehmanniae Praeparata is sweet, warm and thick in flavor, moist and greasy in texture, which is the key medicine for nourishing Yin and tonifying Blood; Radix Angelicae Sinensis tonifies Blood and Blood, and is used together with Radix Rehmanniae Praeparatae to increase the strength of Blood and to regulate the stagnation of Blood in campsite; Paeonia Lactiflora nourishes Blood and astringes Yin, softens Liver and eases the urgency of the problem; Rhizoma Ligustici Chuanxiong invigorates Blood and promotes the circulation of Qi, which, together with Radix Angelicae Sinensis, promotes the strength of Blood and enables the medicines to tonify Blood but not stagnate it. The adverse effects and contraindications of this formula are not clear. After discomfort occurs, one should consult a doctor in time and choose medication under the guidance of physician’s diagnosis and guidance, and should not use medication on one’s own in order to avoid delaying the condition.