This is true, just above. The idea is for you to be able to function and to be free from anxiety, to be able to sleep, and to live with freedom from dread and anger. While the dosage of metoprolol is high, if it works, it works! If/when it ceases to be sufficient, listen to your doctor, but ask him/her if there is some other drug that could work. Maybe diltiazem, maybe an anti-arrhythmic in a mild dose.