There is no gender difference in the use of Four Substances Tang, which has the effect of nourishing and tonifying Blood. The main ingredients of Si Wu Tang are Angelica sinensis, Radix Rehmanniae Praeparata, Radix Paeoniae Alba and Rhizoma Ligustici Chuanxiong, which have the effects of invigorating, tonifying and nourishing Blood. This formula is based on Radix Rehmanniae Praeparata, which nourishes Blood, supplemented by Radix Angelicae Sinensis, which regulates menstruation and activates Blood, and White Peony and Rhizoma Ligustici Chuanxiong, which nourish Blood and activate Qi and Blood (promoting the flow of gases to make the Blood circulate). It is commonly used in Chinese medicine for palpitations (rapid heartbeat, often accompanied by panic), insomnia, pale lips and nails, anemia, and other conditions. Four Substances Tang is warm in nature, and as a tonic, it is mainly used for people with anemia, menstrual disorders, and deficiency of Ying and Blood (deficiency of blood in the body). It should be used with caution in patients with Yin deficiency and blood heat, so as not to aggravate the body’s pre-existing heat syndrome. Four Substances Tang is often used in combination with other medicines for the treatment of diseases, and the dosage of the medicine and the Chinese medicine used will be adjusted depending on the patient’s condition, but it is not suitable to be used together with quatu. Four Substance Tang as a traditional Chinese medicine, patients should be taken by a professional doctor after identification, follow the doctor’s instructions to take, do not blindly use their own medication, in order to avoid adverse reactions.