Warfarin (Coumadin) and its Interactions with Food, Herbs and Alcohol

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Warfarin (Coumadin) interaction with Food, Herbs and Alcohol It is important to know how to take the medication to avoid the drug-food interaction. This interaction can sometimes also reduce the effectiveness of the drug itself.

Drug Name : Warfarin (Coumadin)

Warfarin is an anticoagulant, prescribed for deep venous thrombosis and pulmonary embolism.

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Warfarin (Coumadin) Interactions with Food and Herbs

Vitamin K Rich Foods: Vegetables like broccoli, cabbage, coriander, collard greens, spinach, kale, black licorice, turnip greens, Brussels sprouts and avocados which are rich in vitamin K decrease the ability of warfarin to prevent blood clotting. Intake of soy foods may increase or decrease warfarin effect.

Grapefruit : Avoid eating grapefruit or drinking grapefruit juice with warfarin as it decreases the body's ability to metabolize the drug.

Cranberry Fruit and Juice :Do not drink cranberry juice while on warfarin as it increases the anticoagulant effect of the drug.

Others: Glucosamine, fish oils, flaxseed oils interact with warfarin and increase bleeding. Eating chargrilled foods decreases warfarin activity and cooked onions increase warfarin activity.

Herbs: Do not take garlic, ginger, ginseng, ginkgo, cannabis, dong quai (Angelica sinesis), fenugreek, thyme, oregano, dried basil, alfa alfa with warfarin as these herbs when taken with warfarin increase the risk of bleeding.
Parsley and passion flower increase the effect of the warfarin therapy while St. John's wort reduces the effect of the drug.

Warfarin (Coumadin) Interactions with Alcohol

Warfarin interacts with alcohol. Avoid more than one or two alcoholic drinks a day and never binge drink.

How to Take the Medication - Warfarin (Coumadin)

You can take the drug on a full or empty stomach once or twice a day. Sudden increase or decrease in the intake of green leafy vegetables may affect the effectiveness of the drug. So, consume green leafy vegetables in a consistent amount.



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