So @plantspec, I have been on Coreg (Carvedilol) for many months and without any noticeable troubling side-effects. I have discussed such problems with several dozen other Coreg users. Dosage level is a crucial factor. So is the condition that prompted your doctor to prescribe Coreg, as well as realizing that most patients do better when dosage is increased or decreased gradually over a period of weeks (that includes considering an initial dose of 6.25 milligrams per day). I hope your relations with your cardiologist leads to your full confidence in your treatment. Martin