Flecainide aceteate

[Don9]

If I miss a dose of flecainide will my INR be affected and how?
Thanks
Don

[Don9]

Hi,
Thanks for your reply.
Amongst other things I missed a dose of Flecainide. When I started this this new chemical I was informed by my nurse that it would affect my INR. By how much was not discussed. Does my INR go higher or lower? It's the first question I'll ask her on our next meeting. I've just had a cardioversion postponed because of a change in levels.
Don

[Don9]

Hi,
Taking medications on top of Warfarin affect your INR. I am concerned that missing a dose of a newly introduced chemical raises my INR. My cardioversion for yesterday was postponed because my INR and potassium levels were inappropriate.
Don

[Don9]

Thankyou for your response. I have had a cardioversion postponed because of unacceptable levels of potassium and INR. I'm just eliminating possible causes because my GP says she''l get back to me!!
Don

[DeltaDawn23]

Other drugs may, however, affect your INR.  I had a high reading and it is because of the Zantac I switched to from Prevacid for treatment of my GERD.  So I'm back to Prevacid until I can switch to a lesser med if possible.  I've also had a high INR from Pepto bismal (which apparently has asprin in it).  Always read the cautions and warnings on OTC meds and ask the pharmacist on any Rx's if you are on a blood thinner.  Better safe than sorry.

[is_something_wrong]

The answer is no. Flecainide is not the drug that determines the INR - blood thinners (warfarin, coumarin or what the trade name is) do.

I assume you have paroxysmal (events of) atrial fibrillation if you need your INR regulated and you take Flecainide. Atrial fibrillation is controlled through rate control or rhythm control. Antiarrhythmic drugs (like Flecainide) is used to avoid atrial fibrillation from happening. Rate control means to accept to be in atrial fibrillation, but keeping the heart rate between 60 and 100 bpm, even with the arrhythmia. For that use, calcium blockers or beta blockers are the most effective.

Sorry if this information was unnecessary - I just wanted to explain.

Take care.

[Jerry_NJ]

I do not use Flecainide, so what do I know?  

I'll tell you this, I think Flecainide has nothing to do  with your INR, which is a measure of your blood clotting capability.  INR is affected by what we eat, and for those of us on an anticoagulant (coumadin/warfarin) by our anticoagulant.