Inclusion criteria
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1. Patients who meet the diagnostic criteria of chronic heart failure, and TCM syndrome differentiation is heart kidney yang deficiency syndrome;
2. The patients aged 18 years <= 80 years are not limited in gender;
3. Patients with more than 3 months of chronic heart failure history or clinical symptoms of heart failure for more than 3 months;
4. Patients with NYHA cardiac function grade II-III or stable clinical symptoms, including those who had been diagnosed as grade IV within 2 weeks before inclusion;
5. Patients with serum NT proBNP level >= 450 pg / ml;
6. Patients who have received standardized drug treatment for at least 2 weeks and have not adjusted the dosage;
7. Patients who voluntarily participate in the study understand and sign the informed consent form.
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Exclusion criteria:
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1. Patients with heart failure due to valvular disease, congenital heart disease, pericardial disease, arrhythmia and non cardiogenic causes, or heart failure caused by liver and kidney and other important organ failure; and right heart failure and acute heart failure caused by definite pulmonary or other reasons;
2. Patients who plan to undergo coronary revascularization therapy or cardiac resynchronization therapy in the near future, and those who have implemented cardiac resynchronization therapy;
3. In patients with severe primary diseases such as liver, kidney and hematopoietic system, liver transaminase and alkaline phosphatase exceeded the upper limit of 3 times of normal value, serum creatinine > 2mg / dl (176.82 umol/L), and serum potassium > 5.5mmol/l; in patients with tumor, severe neuroendocrine system diseases and psychosis; in patients with severe neuroendocrine system diseases, serum creatinine > 2mg / dl (176.82umol/L), serum potassium > 5.5mmol/l;
4. Patients with left ventricular outflow tract obstruction, myocarditis, large aneurysms, dissecting aneurysms, unrepaired valvular heart disease with obvious hemodynamic changes;
5. Patients with cardiogenic shock, uncontrollable malignant arrhythmia, progressive unstable angina pectoris or acute myocardial infarction;
6. Patients with uncontrolled hypertension, systolic blood pressure >= 180 / mmHg and / or diastolic blood pressure >= 110 mmHg;
7. At the same time in the use of other cardiotonic or diuretic drugs, such as salbutamol, etc.;
8. Patients who participated in the clinical study of other drugs within one month;
9. Women who are pregnant or are preparing for pregnancy and lactation;
10. Objects of allergic constitution or known allergic to therapeutic drugs;
11. Patients with Yin deficiency and internal heat, hyperactivity of liver Yang and phlegm fire in TCM syndrome differentiation;
12. Patients with glaucoma;
13. According to the investigator's judgment, the patient could not complete the study or could not comply with the requirements of this study (due to management reasons or other reasons).
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