Biochemistry Tang can be used for treating postpartum dyspareunia (a woman’s inability to discharge the evil discharge after giving birth) and cold pain in the abdomen. Biochemistry Tang is from Fu Qingzhu (傅青主女科). This formula is composed of Rhizoma Ligustici Chuanxiong, Peach Kernel, Angelica Sinensis, Radix et Rhizoma Glycyrrhizae, Cannon Ginger (can be added with Yellow Wine). It has the effects of nourishing and activating Blood, warming menstruation and relieving pain (warming and nourishing the blood channels and meridians, promoting blood circulation and metabolism to relieve pain). It is mainly used in treating blood deficiency and cold condensation, stagnation of blood stasis (stagnation of blood stasis caused by deficiency of qi and blood as well as condensation of cold in the body), which can be seen in the postpartum period when there is no discharge of evil dew, and cold pain in the abdomen. In this formula, Angelica sinensis can nourish blood and activate blood circulation, resolve blood stasis and generate new blood (removing blood stasis and promoting the generation of new blood); Rhizoma Ligustici Chuanxiong is pungent and warming, activates blood circulation and promotes the operation of qi and blood; peach kernel activates blood circulation and removes blood stasis (removing blood stasis and promoting the operation of blood); turmeric enters into the blood and disperses cold, warms the meridians and stops bleeding (warming the meridians of the human body and stopping the bleeding in the body); and yellow wine warms and passes the blood circulation to help the strength of the medicines. Roasted licorice harmonizes the middle and eases the urgency (relieves pain by regulating the spleen and stomach), and harmonizes all the medicines (harmonizes the medicinal properties of different Chinese medicines). All the herbs work together to nourish and invigorate blood, warm menstruation and relieve pain. The adverse effects and contraindications of Biochemical Tang are not known. Before taking this formula, it is necessary to consult a traditional Chinese medicine practitioner for diagnosis and take it under the guidance of a physician, do not use the medicine blindly without authorization.