Dingkundan has saffron, chuanxiong, motherwort and other blood-activating medicines, which need to be taken with caution during the preparation for pregnancy, so as to avoid miscarriage without knowing that there is a pregnancy or have an impact on the development of the embryo, such as the need to take, it is recommended to take it before the preparation for pregnancy, and can only be prepared for pregnancy after discontinuing the medication, there is no “optimal time to take it”, the specific use of the medication, please follow the instructions of the doctor. Dingkundan is composed of red ginseng, safflower, motherwort, wolfberry, chuanxiong and other traditional Chinese medicines, which can nourish the qi and blood, ease the liver and relieve depression, and regulate menstruation. It is used for treating irregular menstruation, abdominal pain during menstruation due to deficiency of qi and blood, stagnation of qi and blood stasis, discharging blood in the form of metrorrhagia (excessive menstrual flow or more than a few drops of menstruation), reddish leucorrhoea (abnormal leucorrhoea with blood in it or blood clots in it), postnatal deficiency, and tidal fever of the bones (a burst of heat, feeling that the heat is penetrating from the inside of the bones to the outside). The adverse reactions and contraindications of the drug are not clear, note: during the drug, avoid cold, greasy and stimulating food; stop taking when you have a cold or flu; and so on. It is recommended to take Dingkundan before preparation for pregnancy, if a lady takes it during preparation for pregnancy and becomes pregnant while taking the medicine, the medicine may cause miscarriage or have an effect on the development of the embryo. If there is any discomfort and medication is needed, please seek medical advice and use the medication under doctor’s guidance.