of BB, but I can say Toprol (Metoprolol
), which is taken at a much higher does, usually 50 mg or higher, can produce the side effects you describe. Some of us adjust to them over time. I take Metoprolol at a 100 mg per day level, and may go higher. In the beginning it cause a too low BP and caused some dizziness when I stood up too quickly (or just didn't take time to stand up). These side effects have passed, my BP in now near normal.