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Medications and Drugs

Brand Names:

Generic Name: dong quai (Pronunciation: DON KWAY)

What is dong quai ()?

The use of dong quai in cultural and traditional settings may differ from concepts accepted by current Western medicine. When considering the use of herbal supplements, consultation with a primary health care professional is advisable. Additionally, consultation with a practitioner trained in the uses of herbal/health supplements may be beneficial, and coordination of treatment among all health care providers involved may be advantageous.

Dong quai is also known as Angelica polymorpha, tang-kuei, dang-gui, and Chinese angelica.

Dong quai has been used in the treatment of menstrual cramps and irregular menses; as a muscle relaxant; as a blood purifier; and in the management of high blood pressure, arthritis, ulcers, anemia, constipation, and allergies.

Dong quai has not been evaluated by the FDA for safety, effectiveness, or purity. All potential risks and/or advantages of dong quai may not be known. Additionally, there are no regulated manufacturing standards in place for these compounds. There have been instances where herbal/health supplements have been sold which were contaminated with toxic metals or other drugs. Herbal/health supplements should be purchased from a reliable source to minimize the risk of contamination.

Dong quai may also have uses other than those listed in this product guide.

What are the possible side effects of dong quai ()?

Stop taking dong quai and seek emergency medical attention or notify your doctor immediately if you experience any of the following rare, but possibly serious, side effects:

  • an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives);
  • unusual bleeding or bruising;
  • a rash or a sunburn; or
  • changes in skin color or moles.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about dong quai ()?

Avoid excessive or prolonged exposure to sunlight while taking dong quai. Dong quai may increase the sensitivity of your skin to sunlight. Use a sunscreen and wear protective clothing if sun exposure is unavoidable.

Do not take dong quai without first talking to your doctor if you have a bleeding or blood clotting disorder; if you are taking a medicine to prevent blood clots; or if you are taking other medications, herbs, antioxidants, or health supplements (these may also affect blood clotting). Dong quai may affect the time it takes for your blood to clot.

Dong quai has not been evaluated by the FDA for safety, effectiveness, or purity. All potential risks and/or advantages of dong quai may not be known. Additionally, there are no regulated manufacturing standards in place for these compounds. There have been instances where herbal/health supplements have been sold which were contaminated with toxic metals or other drugs. Herbal/health supplements should be purchased from a reliable source to minimize the risk of contamination.

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Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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