Waiting to see oncologist on Monday. Have talked to pharmacist at Diplomat Specialty drugs as well as been seen by my cardiologist. My cardiologist increased my Toprol. The pharmacist is talking lower dosage or ceasing ib. I'm wondering when others have experienced afib on ib what the solution has been and whether they ended up able to continue with ib. Also wondering if stress adds to the problem. Perhaps if I take some proactive steps to release stress the Afib would just go away! But maybe I'm just one of those unlucky few small percentages on the severe side effects chart.