treatment for afib with cardizem cd and tambocor

I am a 40 year old man that was diagnosed with atrial fibrilation this past August.  Prior to the diagnosis I experienced many episodes of a fib ---one lasting 12 hours and I converted with the help of IV meds.  I was an avid runner and in excellent physical condition prior to the diagnosis and not on any medication.  I am being treated with both Tambocor 100 mg twice a day and Cardizem CD 180mg once a day.  After starting the treatment the a fib episodes did not occur except for one 2 hour episode 3 days ago.  One thing I have noticed is shortness of breath especially in the middle of my day or in the middle of the night---about 6 hours after taking my meds.  Does anyone experience the same breathing issue? And, is just tambocor 100mg alone a good treatment or is it common to be on both of the meds? I have never been on just Tambocor and I am considering talking to my doctor about discontinuing Cardizem CD.


This discussion is related to TAMBOCOR AND A-FIB.