What are the side effects of dong quai?

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.