It can be used to treat coronary heart disease, old myocardial infarction and cardiac insufficiency, and improve the symptoms of chest tightness, chest pain, palpitation, panic and vertigo. In addition, it is also effective for syncope caused by plateau hypoxia, strenuous exercise and transient cerebral ischemic attack. It is recommended that if the patient is mildly ill and the current condition is not very serious, he can take 2 capsules each time and 3 times a day, if the condition is more serious he can take 4 capsules each time and 3 times a day, and the maximum daily dosage should not exceed 12 capsules. This drug is relatively safe, but it is not used as a secondary prevention drug for the regular treatment of cardiovascular diseases, that is, it can be taken for a short period of time to relieve symptoms, but it is not recommended for long-term use to prevent disease progression.