What Causes Low INR While On Coumadin?

Posted on Tue, 22 Sep 2015

Question: My friend is taking coumadin for the first time. Her number is 1.2 for several weeks. Yet the consultant is increasing the tablet to 3. Is this something to question?

Answered by Dr. Panagiotis Zografakis (16 minutes later)

Brief Answer:
INR 1.2 is low

Detailed Answer:
Hello,

if you're referring to the INR value (1.2) then this is too low and he should have taken higher doses much earlier. The dosage is always individualized. The target INR range is usually between 2.5 and 3.5 depending on the underlying disease. So if this is his case, there is nothing to question. In order to avoid thrombotic complications the adjustment of INR has to be done in more quick steps.

I hope you find my comments helpful!
You can contact me again, if you'd like any clarification or further information.

Kind Regards!

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Panagiotis Zografakis (33 minutes later)

I will suggest to my neighbor and family to call their medical doctor at once for instructions and speed up procedures.if appropriate. I am only a concerned neighbor who has noticed the reports as l drive patient for tests. Thank you for opinion to support my concern.

Answered by Dr. Panagiotis Zografakis (18 minutes later)

Brief Answer:
You're welcome

Detailed Answer:
Glad to help!

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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar