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

* This drug may consist of multiple approval dates, manufacturers, or distributors. If applicable, they would be listed below under "NDC Database Records".

Coumadin Overview

Warfarin, also known by the brand names Coumadin among others, 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 found to be effective...

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
2 Replies RSS
used for rat poisoning in humans ## It's sad to see things were to scared to test on ourselves being tested on animals; even rats. In the case of supplements or Vitamin K in this instance, you never know exactly what they do in their testing facilities to ensure it works the way they want it to work. Word of advice: Get your vitamins and minerals from whole fresh ripe raw organic fruits and vegetables, and you can be assured you are getting plenty of what you need if you incorporate this eating habit on a regular basis. You are also doing the rats (and other animals) a favor by not supporting and buying into these failed products. ## Vitamin K is an essential nutrient that is vital for calcium metabolism, blood clotting, heart health and much more. Usually the blood thinner called C...
Updated 3 minutes ago.
PT level 1.5 Dr. Lowering dosage
1 Reply RSS
My doctor wants me to stop dosage for 2 days and my level is 1.5 is this not dangerous I have history of stroke and a mechanical mitral valve. I have been on this since I was 12 years old and I am 44 now. ## Hello, Teresa! How are you? It is always best to follow your doctor's instructions. It is fairly common to have some skip doses of this medication, or alternate the days they take it to keep their levels where they should be. Did you mention your concerns to your doctor? The FDA lists the typical side effects of this medication as possibly including nausea, dizziness, headache, increased risk of bleeding and easy bruising.
Updated 1 month ago.
Coumadin and DVT
1 Reply RSS
About two months ago I broke three metatarsal in my right foot. I have been using a scooter and non weight bearing since. Early on, day 8 I had what felt like a Charlie horse that wouldn't go away. Went in and found a blood clot in my calf, a DVT. Since then I have been on Coumadin. I first went a few times a week to be checked and now once a week. I eat the same thing and have specifically avoiding drinking and foods high in vitamin K. My current INR is 3.7 and I know that is high. It has been higher previously and want to make sure I am not having internal bleeding or some other side effect. Currently I am experiencing headaches (not the worst in life, but constant), mild dizziness, general lack of energy and past few nights slept foe 10+hours. I don't want to go to the ER if ...
Updated 1 month ago.
Warfarin (Coumadin) and PT-INR levels
10 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 2 months ago.
I believe coumadin lowers my mood and confidence.
3 Replies RSS
I am an active 41 yr old male who has been on coumadin for 9 years and now believe it lowers my mood and confidence. I originally believed my changes in mood and confidence were associated with my open heart surgery to replace my aortic valve and the life changes and trauma one would expect after such an event at 32 yrs old. But recently i was allowed to come off coumadin for a little over a week to have a back surgery. My INR was normal after 3 days giving me 5 days with my normal blood again. My confidence about the surgery, myself and outlook on life and my business changed enough for me to notice reminding me of how i felt before open heart surgery. Solid is the word i would use. The morning after returning to take coumadin again, a couple days after back surgery, i woke up with a f...
Updated 3 months ago.
Lightheadedness and dizziness with taking coumadin
2 Replies RSS
Has anyone else gotten Lightheadedness and dizziness from Coumadin. I have been told this doesn't happen and I would be the first. My Coumadin therapist has never heard this. I don't believe that ## I find it hard to believe your therapist too, since there are a good number of webpages listing: headache, dizziness, weakness, fainting, nausea, and even flu-like symptoms as side effects of Coumadin (warfarin). All your therapist had to do was google "Coumadin side effects" and he would've known this to be the case. Here's one of many side-effect listings that show what symptoms you're describing: I have to wonder if he's really lying or simply doesn't know how to use the internet. In any case, I hope t...
Updated 3 months ago.
vitamin k equivalents
1 Reply RSS
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 8 months 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 8 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 8 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 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.

NDC Database Records for Coumadin: (52 results)

Showing the first 20, Sorted by National Drug Code
  • 0056-0168 Coumadin 4 mg Oral Tablet by Bristol-myers Squibb Pharma Company
  • 0056-0169 Coumadin 1 mg Oral Tablet by Bristol-myers Squibb Pharma Company
  • 0056-0170 Coumadin 2 mg Oral Tablet by Bristol-myers Squibb Pharma Company
  • 0056-0172 Coumadin 5 mg Oral Tablet by Bristol-myers Squibb Pharma Company
  • 0056-0173 Coumadin 7.5 mg Oral Tablet by Bristol-myers Squibb Pharma Company
  • 0056-0174 Coumadin 10 mg Oral Tablet by Bristol-myers Squibb Pharma Company
  • 0056-0176 Coumadin 2.5 mg Oral Tablet by Bristol-myers Squibb Pharma Company
  • 0056-0188 Coumadin 3 mg Oral Tablet by Bristol-myers Squibb Pharma Company
  • 0056-0189 Coumadin 6 mg Oral Tablet by Bristol-myers Squibb Pharma Company
  • 0590-0324 Coumadin 2 mg/ml Intravenous Injection, Powder, Lyophilized, for Solution by Bristol-myers Squibb Holdings Pharma, Ltd. Liability Company
  • 43353-491 Coumadin 10 mg Oral Tablet by Aphena Pharma Solutions - Tennessee, Inc.
  • 43353-492 Coumadin 3 mg Oral Tablet by Aphena Pharma Solutions - Tennessee, Inc.
  • 43353-493 Coumadin 1 mg Oral Tablet by Aphena Pharma Solutions - Tennessee, Inc.
  • 43353-494 Coumadin 7.5 mg Oral Tablet by Aphena Pharma Solutions - Tennessee, Inc.
  • 49999-411 Coumadin 2.5 mg Oral Tablet by Lake Erie Medical & Surgical Supply Dba Quality Care Products LLC
  • 50090-0028 Coumadin 5 mg Oral Tablet by A-s Medication Solutions LLC
  • 52125-053 Coumadin 3 mg Oral Tablet by Remedyrepack Inc.
  • 52125-075 Coumadin 7.5 mg Oral Tablet by Remedyrepack Inc.
  • 52125-079 Coumadin 10 mg Oral Tablet by Remedyrepack Inc.
  • 52125-080 Coumadin 5 mg Oral Tablet by Remedyrepack Inc.
  • 32 more results ...

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

Possibly related Coumadin Topics:

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coumadin vs. xarelto I've been on coumadin since 2001 when I had a dvt and have had no problem with it...ever. Now, my doctor wants me to... 5 replies
Coumadin Why does a doctor put a patient on coumadin? I was put on it after developing a blood clot after aneurysm surgery. And h... 5 replies
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 Side Effects My mother began taking Coumadin 2 wks ago. Her INR was 1.9 today, so it's progressing well toward a therapeutic leve... 2 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