can beta blockers cause v tach?

45 yo male.  treated for hypertension for 20 yrs.  two months ago started waking up with tachycardia when I changed to another generic brand of nadolol (20mg).  also take lisinopril 10 mg.   internist put me on cardionet 14 day monitor - showed pvcs and 6 beat run of v tach.  so he doubled the nadolol which made the pvcs worst - plus had numbness of left foot and dizziness.  went to cardiologist - did a 10 min thall stress to 140 hr bpm had no pvcs and good heart function.  also had normal echo.  still at rest was getting tachycardia with nadolol.  went to ep, he changed me to acebutolol 200mg.  now i cant even walk on the treadmill without getting pvcs when i use to run 30 minutes w/o them.  other history...had a fib in 2006 after prescribed adderol - cardioverted.  took rhythmol had massive pvcs and promptly discontinued.  also in 2001 took atenolol - had pvcs until being switched to toprol xl.  question:  could the beta blocker meds be causing my rhythm problems?  could i just do without them?  note: a year ago i was running 4 miles a day 3 days a week and swimming a mile two days a week on 20mg nadolol 10mg lisinopril with no problems.

[cindy707]

Definately beta blockers work differently for different people but the thesis that is the same is that it is meant to block adrenaline runs or rushs to eliminate tach and fib.  If you are waking up w. tach...been there done that one more times than i care to think about and hated it...not being in control of my life like in waking hours...they keep switching your meds, up down old new.....and you are still taching out...have you talked to the doc about the possibility of an ablation in your future?  Its a no brainer procedure and a cure not a treatment and for gosh sake don't even think about stopping the beta blockers until the doc gives you the course of weaning off of them...if you stop them abruptly you can get something called re bound where the tach comes onto you X3 and is super ugly....talk to the doc for more permanent options is my suggestion....

[jkgrooms]

Thanks for you response.  I will remain the course,  So far a Thallium Stress Test, Echo, and Heart MRi have been negative.  The only problem with Acebutolol, is i get PVCs in succession when I am on the treadmill whereas with Nadolol I did not (just at rest).  At rest (acebutolol) seems to to do good job as long as I am not stressed.  For me, controlling anxiety is key.  I am taking Paxil to try to help with the anxiety.  I think of all the ailments one can contract, rhythm issues are definitely the worst, because they come out of nowhere and you don't know if it is you last breathe.  Thankfully, God has set the of birth and death for all men,  and nothing is going to kill you unless it passes through his hands - providence,  I appreciate you wise remarks and will apply your advice.  Thanks, Jonathan