Many medicines, including herbal remedies, affect warfarin control. The following are some examples but this is not a comprehensive list. Be aware of potential interactions especially in products where the details of the content are uncertain.
Complementary Medicines which may Increase the Anticoagulant Effect
| Danshen | Dong Quai |
| Ginger | Horse chestnut |
| Papain/Papaya extract | Vitamin E >400iu/day |
Complementary Medicines which may Decrease the Anticoagulant Effect
| Coenzyme Q10 | Ginseng |
| Green Tea | St John’s Wort |
Complementary Medicines which affect Platelet Function
| Feverfew |
| Ginkgo biloba |
| Garlic |
Note
This is not an exhaustive list. To check for an interaction or what action to take contact your pharmacist.