My cardiologist put me on metoprolol 50mg. for palpitations. Side effects was killing me. So it was reduced to 25mg. Side effects still did a number on me especially my breathing. I thought I was going to have to go to the ER. I took it once a day at night. My blood pressure was not that high in number. I've only been taking this med going on 2 months. I can't function with this medication. Within the last few days I have stopped taken this medication. My blood pressure has not gone up. I've been monitoring it. But coming off this med makes me feel like crap. Lightheaded, lack of motivation and if I do anything strenuous like moving around a whole lot my heart rate increases. After I sit down I'm ok. Thus medication is the devil. I go see my family doctor next week to discuss.