I have frequent episodes of rapid, irregular heart rate. Finally, we caught it on an event monitor and it was diagnosed as Paroxyxmal Atrial Tachycardia. I assume this is the same as PSVT? Due to relocation, change of doctors, etc., I have ended up with three doctors all giving me different advice. They all agree that it is benign, but aggravating. I get lightheaded, cough and feel somewhat "confused" when it happens. Nevertheless, they've assured me it's ok. My concern is, all three cardiologists have written different prescriptions, and all three docs have assured me that "this med is the best choice." They are Lopressor, Propranolol and Atenolol. Quite frankly, I'm not crazy about any beta blockers because 1.) my blood pressure is normally quite low (107/70), and 2.) I have Reactive Airway Disease. From what I can tell, shouldn't they be prescribing a Calcium Channel blocker instead?