Indication: 1 Hypertension (alone or in combination with other antihypertensive drugs). 2 Exertional angina pectoris. 3 Control supraventricular tachyarrhythmias and ventricular arrhythmias, especially those related to catecholamines or caused by digitalis. It can be used to control the ventricular rate of atrial flutter and atrial fibrillation that are not well treated with digitalis, and can also be used for refractory premature contractions to improve patients' symptoms. 4 Reduce the outflow tract pressure difference in hypertrophic cardiomyopathy, relieve symptoms such as angina pectoris, palpitations and syncope. 5 Used in combination with alpha-receptor blockers to control tachycardia in patients with pheochromocytoma. 6 Used to control the rapid heart rate of hyperthyroidism, and can also be used to treat thyroid

Indication: This medicine is used for heart failure, myocarditis, sick sinus syndrome, coronary heart disease and cardiomyopathy, and can be used as an auxiliary treatment for arrhythmias.

Indication: This medicine is used for heart failure, myocarditis, sick sinus syndrome, coronary heart disease and cardiomyopathy, and can be used as an auxiliary treatment for arrhythmias.

Indication: This medicine is used for heart failure, myocarditis, sick sinus syndrome, coronary heart disease and cardiomyopathy, and can be used as an auxiliary treatment for arrhythmias.

Indication: It is used to treat hypertension, angina pectoris, myocardial infarction, hypertrophic cardiomyopathy, aortic dissection, arrhythmia, hyperthyroidism, cardiac neurosis, etc. In recent years, it is also used to treat heart failure, and it should be used under the guidance of an experienced physician.

Indication: It is used to treat hypertension, angina pectoris, myocardial infarction, hypertrophic cardiomyopathy, aortic dissection, arrhythmia, hyperthyroidism, cardiac neurosis, etc. In recent years, it is also used to treat heart failure, and it should be used under the guidance of an experienced physician.

Indication: It is used as a short-term supportive treatment for heart failure caused by decreased myocardial contractility in patients with organic heart disease, including low output syndrome caused by open heart surgery.

Indication: Treat angina pectoris and hypertension. Angina pectoris caused by coronary artery spasm, including resting angina pectoris or variant angina pectoris, or exertional angina pectoris caused by coronary artery obstruction. It can also be used to treat supraventricular tachyarrhythmias and hypertrophic cardiomyopathy.