Patients who have a recurrent feeling of fast heartbeat or panic at night should record their heartbeat or pulse count for 1 minute against the clock to determine if the heartbeat is at 60-100 beats per minute, and if it exceeds 100 beats per minute, then tachycardia is considered. Such people can take heart-stabilizing granules and Zhenyuan capsules, which are proprietary Chinese medicines that can relieve the feeling of palpitations. Similarly, patients who have a fast heartbeat can take betalac as well as Bosulol (also known as Bisoprolol Fumarate) which can lower the heartbeat. Some patients who have had an electrocardiogram and are found to have sinus tachycardia can take Corant (also known as ivabradine), which can specifically reduce sinus tachycardia. In addition, there are some people who feel a fast heartbeat but have a slow heart rate of 30-40 beats per minute. These people have a third-degree atrioventricular block and have palpitations that make them think they have a fast heartbeat.