Observed herb/drug interactions associated with Dang Gui, Dong Quai, Tang-Kuei (Angelica sinensis). [Source]
| Patient Abstract | Herb and Use | Drug Believed to Interact | Other Drugs Being Taken | Medical Observation | Mechanism | Legitimacy |
|---|---|---|---|---|---|---|
| 46 year old woman with history of stroke, rheumatic heart disease and atrial fibrillation | Dong quai Angelica sinensis (Gynaecological conditions) | Warfarin | Digoxin, frusemide | ↑ INR | Herb acts as Cox inhibitor | Likely |
| Woman with history of mitral valve replacement | Dong quai Angelica sinensis (Gynaecological conditions) | Warfarin | None stated | INR = 10, widespread bruising | Herb acts as Cox inhibitor | Possible |