I'm a 31 year old male with high blood pressure, anxiety, and a few recorded PVCs. I recently had a stress test with some ST depressions, which the cardiologists suspected as a false positive. Nonetheless, to be on the safe side I was given a nuclear stress test - everything turned out just fine, my cardiologist said my heart is perfectly normal. The only problem was the high heart rate - when I went to get on the treadmill my heart rate jumped from 90 bpm to 145 bpm. This is definitely from the anxiety - I was terrified of the test and treadmills make me very uncomfortable. Moreover, at home my heart rate never makes a jump like that, it usually goes from 60 bpm to 80 bpm. So, my cardio took me off of the ramipril and put me on 12.5 mg of metoprolol twice a day and in addition to my 12.5 of HCTZ. However, after a week of feeling exhausted, having a resting heart rate consistently in the low 50s, and not much higher otherwise, I complained during my follow up. My cardio gave me some samples of 10 mg coreg to take once a day and a prescription to fill if the side effects from the metoprolol do not get any better. The side effects from the metoprolol have gotten a little better, though as I type this my heart rate is 52 bpm. Does any one have any comments on the pros and cons of carvedilol versus metoprolol? I'm not sure I want to switch if the side effects will be the same. Does anyone have experience with metoprolol? How long do the side effects last?