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Warfarin interaction2

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No. Food Possible MOA Potential Effect<br />

Towards INR<br />

1. Cranberry Juice Inhibitor of CYP enzyme<br />

2. Garlic Intrinsic antiplatelet activity<br />

3. Chitosan Impairment of absorption of<br />

vitamin A, D, E, K<br />

4. Kale (Cooked) 531 mcg of Vit K in ½<br />

cup<br />

5. Spinach (Cooked) 444 mcg of Vit K in<br />

½ cup<br />

6. Mustards green (Raw) 279 mcg of Vit<br />

K in 1 cup<br />

7. Parsley (Raw) 246 mcg of Vit K in ¼<br />

cup<br />

8. Brussels sprouts (Cooked) 219 mcg of<br />

Vit K in 1 cup<br />

9. Spinach (Raw) 145 mcg of Vit K in 1<br />

cup<br />

10. Broccoli (Raw) 89 mcg of Vit K in 1<br />

cup<br />

11. Cabbage (Cooked) 82 mcg of Vit K in<br />

½ cup<br />

12. Kailan (Cooked) 74.62 mcg of Vit K in<br />

1 cup<br />

Supplementation of vitamin K<br />

Supplementation of vitamin K<br />

Supplementation of vitamin K<br />

Supplementation of vitamin K<br />

Supplementation of vitamin K<br />

Supplementation of vitamin K<br />

Supplementation of vitamin K<br />

Supplementation of vitamin K<br />

Supplementation of vitamin K<br />

13. Alcohol Chronic alcohol intake<br />

Can induce warfarin metabolism<br />

by cytochrome P450 and increase<br />

warfarin clearance<br />

Acute alcohol intake<br />

<strong>Warfarin</strong> metabolism may be<br />

decreased, leading to<br />

supratherapeutic INR<br />

14. Soy Speculative mechanisms of soy<br />

milk-induced INR decline such as<br />

changes in warfarin absorption or<br />

metabolism resulting from<br />

alterations in P-glycoprotein<br />

efflux system or organic aniontransporting<br />

polypeptides

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