|
Dong
Quai
Common names: Dang-gui, Chinese
angelica
Botanical name: Angelica
sinensis
Dong quai is
a member of the celery family. Greenish-white flowers
bloom from May to August, and the plant is typically
found growing in damp mountain ravines, meadows, river
banks, and coastal areas. The root is used in herbal
medicine.
Historical
or traditional use
Also known as
dang-gui in Traditional Chinese Medicine (TCM), dong
quai is sometimes referred to as the female ginseng. In
Traditional Chinese Medicine, dong quai is often
included in herbal combinations for abnormal
menstruation, suppressed menstrual flow, dysmenorrhea
(painful menstruation), and uterine bleeding. It is not
used in TCM for treating symptoms associated with
menopause, such as hot flashes. It is also used in TCM
for both men and women with cardiovascular disease,
including high blood pressure and problems with
peripheral circulation.
Active
constituents
Traditionally, dong quai is believed to have a
balancing or “adaptogenic” effect on the female hormonal
system. Contrary to the opinion of some authors, dong
quai does not qualify as a phytoestrogen and does not
appear to have any hormone-like actions in the body.
This is partially supported by a double-blind trial with
menopausal women that found no estrogenic activity for
the herb. In Traditional Chinese Medicine, dong quai is
rarely used alone and is typically used in combination
with herbs such as peony and ligusticum for conditions
such as menstrual cramps.
Dong quai has
been traditionally used as a way to promote formation of
red blood cells, an effect partially supported in a case
study of a man with kidney failure who had a significant
improvement in anemia due to dialysis while drinking a
tea composed of dong quai and peony. No clinical trials
have examined dong quai alone for this purpose, or for
the treatment of other forms of anemia.
How much is
usually taken?
The powdered
root can be used in capsules or tablets.
Women may take 3–4 grams daily in three divided
applications. Alternatively, 3–5 ml of tincture may be
taken three times per
day.
Are there
any side effects or interactions?
Dong
quai may cause some fair-skinned people to become more
sensitive to sunlight. People using it on a regular
basis should limit prolonged exposure to the sun or
other sources of ultraviolet radiation. Dong quai is not
recommended for pregnant or breast-feeding
women.
Are there any drug
interactions? Certain medicines may
interact with dong
quai.
|