Metoprolol
"I originally started taking Metoprolol 25 mg once a day due to SVTs. they helped calm them down a bit. I also have PVCs and PACs especially when my blood pressure is superhigh.  I am now back on this medication and started at 25 mg, within a few months it was up to 50 mg, I recently went up 100mg from my GP,  but now my cardiologist up me to 200 mg.  I have been only taking 100-150 mg. I break to be 100 mg pill in half and take 50 mg every six hours. My blood pressure went from 197/130 to approx 147/97.   I have recently changed my diet dramatically and Inc. swimming and walking as an exercise. 49F, 208lbs. Sedentary life for 5 years. No side effects at all. Take with food though as directed. Causes nausea w/o food for me."