The generic name for Betalucil is Metoprolol Tartrate, and when taken, a heartbeat of 80 beats per minute is normal in terms of heart rate alone, which is basically between 60-100 beats for normal people in general. To determine whether the heartbeat is normal, in addition to the rate of the heartbeat, you also need to check the rhythm of the heartbeat, that is, the heart rhythm. If the patient is stimulated to beat by a signal from the sinus node and the interval between two heartbeats is basically the same, it is a normal heartbeat rhythm. However, an arrhythmia occurs when there is an abnormality in any of the site of origin of the rhythm, the frequency and rhythm of the heartbeat, and the conduction of impulses. At this point, even if the patient’s heart rate is 80 beats per minute, within the normal range, the entire heartbeat cannot be called normal. To know whether your heart rate is normal or not, you should go to the hospital in time for the relevant examination and let the professional doctor make the judgment.