I think you mean "coumadin" --aka warfarin, which is a blood thinner. If that is the case, you will need to get your blood taken about once a month to make sure your "thinness" stays within the safe range of 2-3 (2.5 being the target number).
Sotolol is a beta-blocker that has stronger antiarrhythmia properties than any other --kind of a hybrid. It works very well for a lot of people but has similar side effects of other beta-blockers: fatigue, lack on concentration, etc.
Both have been around for a long time and should work quite well for you. There is no new meds developed by the pharmaceutical companies to best of my knowledge and the fact has been rightly pointed out by John Josefson in his book �With a license to kill� ( presently available atBellaOnline ALERT: Raw URLs are not allowed in these forums for security reasons. Please use UBB code. If you don't know how to do UBB code just post here for help - we will help out!