About Careers Internship MedBlogs Contact us

Warfarin (Coumadin) : Interaction with Food, Herbs and Alcohol

Interaction of Warfarin (Coumadin) with Food, Herbs and Alcohol - For your own safety It is important to understand and avoid the drug-food interaction and how to take the medication. Drug-food interaction can sometimes cause side effects and can even reduce the efficacy of the drug.
Warfarin (Coumadin) is an anticoagulant, prescribed for deep venous thrombosis and pulmonary embolism.


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 -

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.
Warfarin (Coumadin) for Medical Condition(s)
Drugs Search

    What's New on Medindia
    Vaccination  And Counter  Measures Against  Monkeypox
    Indian Railways Special Concession on Health Grounds
    COVID Toes
    View all

    Medindia Newsletters Subscribe to our Free Newsletters!
    Terms & Conditions and Privacy Policy.

    Most Popular on Medindia

    Daily Calorie Requirements Hearing Loss Calculator Blood Pressure Calculator A-Z Drug Brands in India Selfie Addiction Calculator The Essence of Yoga Drug - Food Interactions Turmeric Powder - Health Benefits, Uses & Side Effects Indian Medical Journals Pregnancy Confirmation Calculator

    Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

    © All Rights Reserved 1997 - 2022

    This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use