Toprol-XL and cup of coffee

TWO PIECES OF ADVICE:
DO NOT DRINK alcohol within 6 hrs and EAT right before taking Toprol. This should help with all mentioned side effects!
I have noticed that if I drink ANY alcohol within six hours of taking Toprol (before or after), my HR skyrockets to 190+BPM. I thought this might help others. Also, I MUST eat at least 2 slices of bread each time I take it. Otherwise, I will feel very dizzy, faint and have bad dreams.
If I eat, I have no side effects.
Also, there have been a couple times where I missed a dose or took it late and each time, I feel my heart starting to race and the PVC's coming back.

I have been on 25 mg of Toprol for 6months due to PVC's and rapid/ racing HR (160+)/ palps and BP spikes. My 24hr Holter (six months ago) showed 370 PVC's in one day, so I was put on Toprol. All other heart tests were normal. Anyway, it has worked wonders for me. I had another Holter done last week and there were NO PVC's and steady HR and BP. Since being on Toprol HR is 65, BP is 105/60 or so.