question: I am suffering from un rythmic heart for almost an year and take metoprolol 50 mg o.d. 2 days ago i had terrific pulse rate variation and I felt very dizzy my bp became 110/70 and pulse rate 60/min was hospitalised now i am out of hospital but feel very weak and still have irregular heart...in the hospital they adminstered normal saline with Cordarone.. what should be my next course?