There is no clinical term for a specific cardiac drug, and the drugs used vary for different heart diseases. Commonly used drugs include diuretics, angiotensin-converting enzyme inhibitors, beta-blockers, calcium channel blockers and so on. 1. Diuretics: Diuretics are the basic drugs used in the treatment of many heart diseases, such as heart failure and hypertension. Commonly used drugs include furosemide, hydrochlorothiazide, spironolactone and so on. 2. Angiotensin-converting enzyme inhibitors: Angiotensin-converting enzyme inhibitors are the basic drugs for the treatment of chronic heart failure and hypertension, which can not only delay ventricular remodeling, but also protect the function of the kidneys. Commonly used drugs are captopril, enalapril and so on. 3. β-blockers: β-blockers can antagonize the effect of sympathetic nerves on the heart, and are commonly used in chronic heart failure, certain arrhythmias, hypertension, dilated cardiomyopathy and other heart diseases. Commonly used drugs are metoprolol, bisoprolol and so on. 4. Calcium channel blockers: Calcium channel blockers are commonly used in patients with chronic heart failure, hypertension, certain arrhythmias, hypertrophic cardiomyopathy, and commonly used drugs are nifedipine, verapamil, and so on. There are many kinds of heart diseases, the choice and use of drugs is also very complex, it is recommended that patients go to the hospital as soon as possible, combined with the condition of the professional doctor to guide the use of medication, it is not recommended to take medication on their own in order to avoid causing adverse reactions.