Preventing heart failure usually requires taking ACEI/ARB drugs, beta-blockers, aldosterone receptor antagonists, etc. 1. ACEI/ARB drugs: ACEI refers to angiotensin-converting enzyme inhibitors, such as Benadryl and Fosinopril, and ARB refers to angiotensin ll receptor antagonists, such as valsartan tablets and olmesartan tablets. 2. β-blockers: e.g. bisoprolol, metoprolol succinate, etc., widely used in the treatment of heart failure, arrhythmia, coronary heart disease. 3. Aldosterone receptor antagonists: for example, spironolactone, amphotericin, etc., can reduce the mortality rate of patients with congestive heart failure. All of the above drugs need to be taken under the guidance of a doctor, and should not be taken on their own. If you are allergic to the components of the drug is prohibited, after the use of the drug if there are serious adverse reactions, such as thrombocytopenia, depression, memory impairment, fatigue, dizziness, nausea, vomiting, etc., you need to stop the drug and consult a doctor in a timely manner.