Save to favorites
This feature is restricted to active members.
Join now to save favorites and get all member benefits, including over 1,300 reviews.
Join NowAlready a member? Sign in here.
Our Members Asked:
I take warfarin (Coumadin), an anticoagulant drug. Are there supplements I should avoid, or be taking, due to this drug?
Answer:
Yes, the effectiveness of warfarin (Coumadin), anisindione (Miradon) and other anticoagulant drugs prescribed to help prevent blood clots can be impacted by taking supplements. Because it can be affected by a large number of herbs, supplements and foods, it's important to consult your physician before taking any supplement with warfarin.
Below are some examples of supplements that may potentially interact with warfarin (more details can be found by clicking on the links):
Supplements that may increase warfarin's blood-thinning effect (and consequently, the risk of abnormal bleeding) include:
- Berberine/goldenseal
- CBD (cannabidiol)
- Chamomile
- Cinnamon (high-dose)
- Cranberry
- Curcumin
- Digestive enzymes (i.e. papain and bromelain)
- Fish oil
- Garlic
- Ginger
- Gingko
- Grapefruit juice
- Milk thistle
- Nattokinase
- Saffron
Supplements that may reduce warfarin's ability to thin the blood include:
Join today to unlock all member benefits including full access to all CL Answers and over 1,300 reviews.
Join NowAlready a member? Sign In Here.
Join now at www.consumerlab.com/join/
Loading Comments…
Agree to Comment Terms
Please abide by the following:
- If you make a statement of fact, such as whether a type of treatment does or does not work, state your basis -- such as personal experience or a published study.
- If you make a positive or negative comment about a product, note whether or not you have a financial interest in the product or in a competing product.
- Please be respectful in your tone.
- Please do not submit any type of HTML markup or scripting as it will not be accepted, nor will posts that exceed 2,500 characters.
For your privacy, only your first name (from your account) followed by a random number will appear with your comment. Your last name and email address will not be displayed.
Your comment has been submitted
We will review your comment before it is posted.
Related Reviews (6)
Related CL Answers (9)
Join over 90,000 Members
Find the best products with instant access to our latest tests & reviews of over 1,300 health products.
Save money by finding high-quality products at lower cost.
Be alerted to new clinical findings & warnings.
See answers from our experts.
Stay informed with our e-newsletter.
Submit your comment
This feature is restricted to active members.
Join now to add comments and get all member benefits, including over 1,300 reviews.
Join NowAlready a member? Sign in here.