Dong quai's constituents can act to stimulate the central nervous system which can remedy weakness and headaches associated with menstrual disorders. It strengthens internal reproductive organs, helps with endometriosis and internal bleeding or bruising. It relieves menopausal conditions such as vaginal dryness and hot flashes. The herb has also been used as a blood purifier, to promote blood circulation and nourish the blood in both sexes. It is high in iron content and may help to prevent iron deficiency and anemia.
Studies show that it can aid in regulating blood sugar and in lowering blood pressure.
Dong quai has a mild sedative effect which can relieve stress and calms the nerves. It has also be used to stimulate the uterus during childbirth, treat insomnia, alleviate constipation and for migraine headaches. Found in tea, herbal preparations, capsules, extract and recipes. It is used to restore balance to a woman's hormones and cycles and is helpful in restoring menstrual regularity and for conditions of the reproductive system. It is not recommended during pregnancy, for women with excessive menstrual flow or for people taking blood thinning agents.