been on generic Norpace since 1987 at that time, test showed pvc and occasional avc, if I remember correctly, am 77 now. I rarely am able to get my 4th dose in, (every 6 hours), insurance won't pay for CR, I have never seen a cardiologist, nor had any follow testing. I have a new family physician, would it be wise to ask a new work-up? I am symptom free.