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A 38-year-old member asked:

What are the risks of having too high levels of coumadin (warfarin)?

1 doctor answer2 doctors weighed in
Dr. Michael Klein
Family Medicine 22 years experience
The dose that works.: There is no exact upper limit to Coumadin (warfarin) although the most I have seen someone need is about 12mg daily. Because Coumadin (warfarin) is so closely monitored with blood tests the right answer is the limit is the dose that gets you to your goal inr. Some people are genetically "coumadin resistant" and need much higher doses and people with high vitamin k diets also need higher doses.

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Similar questions

A 42-year-old member asked:

What are the dangers of having high levels of coumadin (warfarin)?

1 doctor answer2 doctors weighed in
Dr. Ted King
A Verified Doctoranswered
41 years experience
Bleeding: Excessive bleeding is the danger of too much coumadin (warfarin). Bleeding into the skin can cause bruising and pain. Into muscle can cause a hematoma and stiffness and could lead to a compartment syndrome. Into a joint, can cause swelling, stiffness, and pain. In the stomach and intestines, can anemia and gastrointestinal bleeding black, tarry stools and diarrhea. Into brain can cause a stroke.
A 45-year-old member asked:

What are the risks of quitting coumadin (warfarin)?

2 doctor answers2 doctors weighed in
Dr. Michael Moran
Cardiology 25 years experience
Depends on why: You are taking it. Atrial fibrillation? Stroke. Artificial heart valve? Death. Deep venous thrombosis? Pulmonary embolus. Pulmonary embolus? Death. Not a good idea to stop it if your doctor put you on it, unless there is a serious bleeding complication, then it should be stopped under a doctor's supervision.
Houston, TX
A 70-year-old male asked:

What are the risks of Coumadin (warfarin) levels of 3.1 is it a concern?

2 doctor answers4 doctors weighed in
Dr. Dan Fisher
Internal Medicine 28 years experience
Not concerned.: Target range for INR is generally 2-3. 3.1 is barely out of range. It very slightly raises your risk of bleeding over your risk when you are at 3.0. Depending upon your doc this level may or may not produce a change in your dosing.
Last updated Mar 13, 2019
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