Asian people have used the root of Angelica sinensis, more commonly known as Dong quai, for more than 1,000 years as an herbal remedy. This member of the celery family grows naturally in the high altitudes of mountainous regions of China, Korea and Japan. Although evidence of its benefits for humans is scant, according to the University of Maryland Medical Center, there is a long tradition of women using this herbal remedy. You can buy Dong quai tea at health food stores, or make tea from dried extract.
Women's Considerations
Dong quai is commonly used in Chinese medicine for treating problems involving women's reproductive systems, according to the UMMC. These include painful menstruation, menstrual cramps, irregular menstrual cycles, infrequent or absent menstruation and premenstrual syndrome. Women also use Dong quai for relieving unpleasant symptoms of menopause, such as hot flashes. Because of its effects on the uterus, Dong quai supplements, including tea, should be avoided by pregnant women. The herb may cause uterine contractions and increase the risk of miscarriage.
Hormonal Considerations
Because of the estrogen-like activity associated with Dong quai in laboratory studies, as noted by the Memorial Sloan-Kettering Cancer Center, people with hormonal-related cancers should be cautious about using Dong quai tea. Additionally, test tube studies of Dong quai indicate the herb stimulates proliferation of certain breast cancer cells. The UMMC recommends taking Dong quai under a doctor's supervision if you are also taking hormone medications.
Photosensitivity
Drinking large amounts of Dong quai tea may increase sensitivity to sunlight, a side effect known as photosensitivity. This can cause sunburn and rashes. Avoid the sun when using Dong quai, or apply adequate sunscreen. St. John's wort has a similar effect, so taking these two herbs in conjunction can aggravate this particular side effect.
Anticoagulant Medication Interaction
Dong quai may increase the effects of medications and supplements with blood-thinning properties, according to the UMMC. These include warfarin, known as Coumadin, as well as ibuprofen, aspirin, and several herbs, including Ginkgo biloba, ginseng and licorice.
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