The Anonymous Widower

INR Results Of A Coeliac Using Warfarin And Taking Terbinafine

This graph shows my INR a period between the 20th of May and the 25th of June.

INR May-June 2014

I should say that I have a degree in Control Engineering from Liverpool University.

My aim here is to keep my INR between two and three, with a target value of 2.5.

Since starting to self test, I normally take around 4 mg. a day of Warfarin, but I have found that five is a better dose for when I’m taking Terbinafine, which has been prescribed by my GP for a fungal infection. The drug is well-known to affect the action of the Warfarin.

So now I take 5 mg. unless the INR is 2.8 or more. In which case I reduce the dose from five to four. On the other hand, if the level is 2.2 or below, I increase it to six.

The average INR value for the period shown was 2.6 with a standard variation of 0.2.

The peak at the beginning of June may have been caused by a B12 injection  or hot weather. Both of which seem to raise my INR.

You will notice that the INR went up around the beginning of June. I can’t be sure, as I don’t have the dates, but this may have been caused by having a B12 injection.

June 25, 2014 - Posted by | Health | ,

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