Most frequently this herb is known as the female ginseng. Angelica Sinensis (Dong Quai) is used quite readily in Chinese medicine for abnormal menstruation, suppressed menstrual flow, painful or difficult menstruation, and uterine bleeding. In addition, this herb was used historically for hot flashes associated with perimenopause, cardiovascular disease, and high blood pressure. Dong quai is said by many Chinese herbalists to help promote improved circulation to the reproductive organs of the female, thus, making it a menstrual balancer, aphrodisiac and assistant with postpartum problems. The active constituents of this herb seem to be aromatic volatile oils that affect the uterus, liver, heart, blood pressure and nervous system. These compounds are known as sequiterpene lactones. Similar compounds are found in many medicinal plants.