Yes. Foods that contain Vitamin K can reduce the effectiveness of Coumadin. You don't have to avoid these foods but if you choose to eat them you must eat them in consistant amounts so your doctor can adjust your Coumadin levels appropriately. Vitamin K is found in foods like leafy green vegetables, green tea and many others. Coumadin also interacts with many medicines too. Acetaminophen and many antibiotics can increase bleeding when taken with Coumadin. Ask your prescribing physician for information on all the foods, drugs, vitamins and herbs that can interact with Coumadin. They have written information they can give you. If you have questions ask you physician or nurse practitioner to explain things to you. When you take Coumadin you must educate yourself and watch what you eat and be aware of all things you put in your body.
This one is right up my alley so to speak. I have been on Coumadin for over 8 years now. I will warn you Coumadin can be a very tricky drug but yes it is a very good drug. It has saved many lives including mine. As for what interacts with Coumadin here is a quick run-down: Vitamin K foods such as, Spinach, Brocoli, Asparagus, and very large salads with alot of greens, Brussel Sprouts, and Cabbage, the darker the greens the more Vitamin K. Vitamin K will make your numbers too low. As far as too high here is some for you: Aspirin, Ibuprofen, Cranberry juice or natural pills of cranberry (cranberry sauce in a can is o.k.), Antibiotics (almost all) the only one I have found that doesn't affect it is Amoxicillan but that one is different for everyone. Also alot of anti-depressants can also affect Coumadin either way--- up or down. Natural substances like Ginger, Garlic, Clove and Ginseng will also make it Rise.
Alcohol and Birth Control products containing estrogen will Decrease the effectiveness of Coumadin, but you cannot take Coumadin if you get pregnant, it must be switched to Lovenox injections. I would also suggest getting an electric razor so you don't cut yourself either. It is also recommended to take Coumadin at the same time everyday, usually most clinics and doctors will reccommend about 4-6 pm everyday. I hope I have helped some, hope this answers your question. Most doctors and Coumadin Clinics have print outs of this info I just remember this much from experience. It is usually reccommended, depending on the doctor, to have your PT/INR levels checked every week until stable then every two weeks for a few months if you stay pretty stable some will switch the testing to once a month. If you have to test to frequently there is a home machine that you can get also, would suggest making sure you have insurance for this though it is very expensive, you just test at home and call an 800 number with the results that the machine shows and then they fax your doctor the results right away, it is a handy tool, I have one and it has actually saved my insurance money in the long run because even though it has been over 8 years for me, my Coumadin levels are all over the place because I am kept quite high--3.5-4.0 I have frequently had to stop my Coumadin and go on Lovenox injections because of surgeries or procedures. I hope that I have helped answer some of your questions so you can understand it better. If you have anymore questions you may want to ask your Coumadin prescriber if they have a Coumadin book or informational sheets, they usually do if they prescribe Coumadin. Good luck to you, never leave a question about Coumadin unanswered, unanswered questions lead to mistakes. Ask away anytime. Thinking of you, marjorie zych
- Coumadin Information for Consumers
- Coumadin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Coumadin (detailed)
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