Active Ingredient(s): Warfarin
FDA Approved: June 8, 1954
Category: Blood Thinner (Anticoagulant)

Coumadin Overview

Warfarin (also known by the brand names Coumadin, Jantoven, Marevan, Uniwarfin) is an anticoagulant normally used in the prevention of thrombosis and thromboembolism, the formation of blood clots in the blood vessels and their migration elsewhere in the body, respectively. It was initially introduced in 1948 as a pesticide against rats and mice, and is still used for this purpose, although more potent poisons such as brodifacoum have since been developed. In the early 1950s, warfarin was foun...

Read more Coumadin Details
Details May Include Instructions, Side Effects, Interactions, Etc. Drug monograph is from Wikipedia. All text is available under the terms of the GFDL (GNU Free Documentation License). Source:

Recent Coumadin Forums: RSS Feed

vitamin k equivalents
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I've kept my coumadin levels very steady because I eat the same thing every day, one half of a bag of prewashed lettuce. Depending on the kind, the bags are normally 7or 9 ounces. The thing is I'm getting tired of it. So without changing my coumadin, how much fresh green beans or canned green beans should I eat? And is there a good place to find these answers? ## Hello, Robert! How are you? What type of lettuce? Not all of it is high in vitamin K, for instance iceberg lettuce is actually very low in it. However, you should also be okay with green beans, because they are also listed as being very low in it. A search for vitamin k levels in foods will turn up several websites that list the information for you, all are free to access. The FDA classifies Coumadin as a blood thinner ...
Updated 1 month ago.
coumadin and cranberry
1 Reply RSS
Getting conflicting info on cranberry juice or AZO tablets and Coumadin. Don't want my 83 yr. old mother to get another UTI. Just got out of hospital from having one. Can't decided if it's ok to give her cranberry juice while taking Warfarin. ## So far, clinical studies have shown no danger in consuming cranberry products, while taking Warfarin, but it's always best to double check with one's doctor to be sure. The FDA classifies Coumadin as a blood thinner and its typical side effects may include nausea, dizziness, headache, increased risk of bleeding and easy bruising. Is there anything else I can help with?
Updated 2 months ago.
Coumadin minimum daily k and diet
2 Replies RSS
Diets and restrictions seem to be all over the place. My feeling on Coumadin, is to keep my vitamin K level on the low side, because I'm not a consistent eater. I cannot rely on a consistent level of higher K. So I'm thinking a lower daily input of K means less change/difference because of a non-consistent diet. So far it's worked, I'm right where I need to be, my IRN(?), is steady. Well, my sister is all over my back, because I won't eat Blueberries or Spinach (I like both but seldom eat either) ... same goes with a few other foods. My doctor, has told me that I can eat all the green beans I want and I related this to my sister that he said green beans were almost a "freebie", no need to control amount. Well, my sister is certain that I'm going to kill m...
Updated 2 months ago.
RSD and Itching - 80 on one side and other
1 Reply RSS
Hi, I have had Avascular Necrosis, and Reflex Sympathetic Dystrophy (stage 4). I have implanted Pain pump that infuses the medication directly into the Spinal Fluid. Over the past several years, I developed extremely "violent" itching. This itching leads to bruising in very large areas. I am also on Coumadin, currently 3mgs a day. I had two bouts with BiPulmonary Embolism(s) back in 1995-1996. I have been prescribed Atarax, Benedryl, and Allegra; all for this itching. I have used virtually OTC cream, spray, and additional Benedryl when I "flare up. This itch is driving me NUTS, and has gone through the same frustration of everything NOT working. I do have a "laundry list" of Meds, as well, other Medical problems that were diagnosed after my knee surgery. I need someo...
Updated 2 months ago.
INR Decreeases With Excercise
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Hello, I'm a 24 year old male and I'm one of those whose INR drops when I excercise. I am currently running 3 miles 5 times a week. I'm taking ten MGs of Coumadin every day except for Wednesday, I then take 12 MGs. I've been in range with this dosage. I had read among some other posts, and people seem to think that your INR drops with exercise because since your heart rate revs up with exercise, the Coumadin is then metabolized quicker and not fully absorbed by your body. If that is true, here is my question: I know Coumadin takes about 24 hours for your body to fully absorb it and for it to affect your INR, which is why I try to exercise around 4 PM so the Coumadin that I took the evening before has had nearly 24 hours to work its magic since I take my Coumadin at 5 PM eve
Updated 3 months ago.
My Father Died from Coumadin
8 Replies RSS
My father was on Coumadin. One day he hit his head. If it were not for Coumadin, the small bump on his head would have amounted to nothing unusual. However, the Coumadin resulted in a cerebral hemorraghe. Even though he had been takikng Coumadin exactly as prescribed and had gone for each of his INR checks, when he got to the hospital, the doctors found his INR was off the richter scale. To relieve the pressure on his brain from the hemorraghe, they needed to operate. But they couldn't because his INR level was too high. They said it would take 24 hours to reduce his INR to a level at which they could operate. By that time, he was dead. Subsequently, the doctors wanted to put me on Coumadin for a year. I said no. They insisted and finally said you have to go on Coumadin for at least...
Updated 3 months ago.
coumadin amaryl and apidexin
1 Reply RSS
What are the interactions of coumadin amaryl with apidexin am looking for a safe diet pill is there any such thing ## can you take lisinopril and pravastin with abedextin?
Updated 8 months ago.
Coumadin (drug) vs Nattokinese (natural)
9 Replies RSS
COUMADIN (actually a rat poison!) is a commonly used blood thinner with some bad side effects. NATTOKINESE is a natural blood thinner with hardly ANY side effects. Any problem switching from coumadin to nattokinese? if YES how (gradually, or...) if NOT why not ? Mike ## How do I switch from COUMADIN (taking now 7mg due to an arterial blood clot, chronic arrythmya, and a small coronary artery) to natural NATTOKINESE? Has anyone done it and can I myself do it - SAFELY.My doctors are absolutelly oposing it!! Thank you for help. Mike, Toronto, Canada ## I am having hip surgery next week. The doctor insists on my taking 2.5 mg of Coumadin for 30 days to prevent blood clots. I would prefer a natural blood thinner, i.e. Vitamin K. I have no history of heart or stroke, am in exdcellent health ,...
Updated 8 months ago.
dvt pe
2 Replies RSS
I am currently taking coumadin for a pe and dvt that the doctors arnt even sure i had in the first place. I stay tired and my head hurts constantly ive been on it for 8 months i want off this poison. Every timr i try to come of this med my doc gets real deffensive and tells me i should get usedto being on it. Now ive had my cloting factors checked and everything looked fine my doc even wrote in my file no problems seem to be present. Evrything looks clear. Recommend extended treatment has any one had these problems ## Hello, Ben! How are you? Well, remember that no matter what's going on and what they prescribe, you are not obligated to take any medication or to continue following that doctor's advice. Which brings me to my next point, if they aren't even sure that you had a...
Updated 9 months ago.
Warfarin (Coumadin) and PT-INR levels
6 Replies RSS
I am 19 years old and have had 4 blood clots so far due to a birth control pill. I have to go every week and get my INR levels checked. Right now I am taking 4 mg on even days and 5 mg on odd days. My levels go from 1.7 to 4.4 to 3.8 to 2.4. I really dont like going every week to get my finger poked, especially at my age. Is there a recommendation that anyone can give me, like a different blood thinner, that I can talk to my doctor about? Or just any advice will help. Thanks ## Hi Julie, I'm sorry to hear about your situation, that sounds rough. I don't have any experience with blood thinners so unfortunately I can't recommend any new ones to you, but according to live, there are foods that act as natural blood thinners. Maybe you incorporate some of these foods i...
Updated 9 months ago.

Possible Dosages for this and Related Drugs:

  • Injection: 50mg/vial, 5mg, 5mg/vial, 75mg/vial
  • Tablet: 10mg, 1mg, 2.5mg, 2mg, 3mg, 4mg, 5mg, 6mg, 7.5mg
Note: Above list includes dosages for all drugs with the same combination of active ingredients.

Other drugs which contain Warfarin or a similar ingredient: (3 results)

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Coumadin vs warfarin My mom was on coumadin for many years but then her insurance company told her she had to take warfarin as this is the on... 32 replies
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coumadin and pain RX I have terrible pain and cannot take any pain Rx due to the coumadin I am on....they all cause the blood to thin more an... 4 replies
Coumadin Ingredients what ingredients are in coumadin? what ingredients are warfarin? ## @mike, To answer your question, Coumadin actually co... 3 replies
coumadin and aspirin what are the differences of taking coumadin or aspirin to prevent blood clots ## Coumadin is a much stronger and more re... 3 replies
Coumadin minimum daily k and diet Diets and restrictions seem to be all over the place. My feeling on Coumadin, is to keep my vitamin K level on the low s... 2 replies
coumadin and secere headaches i am TAKING COUMADIN for one time small DVT and have had SEVERE HEADACHES! my doctor only cares about that INR Levels; a... 2 replies
coumadin and cranberry Getting conflicting info on cranberry juice or AZO tablets and Coumadin. Don't want my 83 yr. old mother to get anot... 1 reply