My Doctor Prescribed Metoprol For Anxiety Along With Prozac. I

My doctor prescribed metoprol for anxiety along with prozac. I started having side effects in the morning like shaking,weakness,fatigue, nausea,racing heart. Asked to be weaned off this drug and instead he prescribed bystolic. From what I read, it 's not good to take with prozac. I'm scared to try it, plus it's expensive. I only take 1half tablet of a 25 miligram tablet of metoprol. Can I just take half of that half tablet and wean myself off it?