Hypertension, hyperglycemia and hyperlipidemia are common diseases, and their further development will often cause heart damage. For example, long-term hypertension can lead to heart failure, and hyperlipidemia can lead to coronary heart disease, angina pectoris, etc. On the other hand, some drugs can also cause drug-induced heart damage. For example, patients with chronic heart failure should pay attention to the combination of digoxin and ephedrine when using digoxin, which will cause arrhythmia; Combined with antacids and gastrointestinal motility drugs, the curative effect will be reduced; Combined with hydrochlorothiazide, it will increase cardiac toxicity; When combined with calcium antagonists, digoxin poisoning may occur. In addition, adriamycin antitumor drugs can cause cardiomyopathy, and COX-2 inhibitors such as rofecoxib can induce heart failure.

Some commonly used heart protective drugs, if used improperly, will aggravate the disease. Therefore, patients with angina pectoris should be reminded to pay attention when using nitroglycerin: usually observe whether the drug has deteriorated or is within the validity period, so as to avoid the failure of first aid; Take one tablet under the tongue every time, and repeat one tablet every 5 minutes until the pain is relieved. If the pain persists after the total amount reaches 3 tablets within 15 minutes, seek medical advice immediately; It is best to take medicine sitting, because standing will cause syncope, and lying down will increase the burden on the heart; Drugs should be carried with you, fixed in a fixed position, and easy to access; Finally, let your family know the storage location and correct use of drugs.