Patients with heart disease can take paracetamol, which is an antihistamine and is commonly used clinically to treat allergic diseases such as urticaria and atopic dermatitis. The side effects of paracetamol are mainly drowsiness or slight dizziness, so it is recommended to take it orally at bedtime, and drivers or people working at height should also avoid using it, if it is a normal dosage it will not affect the cardiovascular system. Heart patients need to be aware that they should consult their doctor before using other drugs, take the drugs for heart disease regularly, do not stop taking the drugs and change them without permission, and go to the hospital immediately if they feel unwell. You should pay more attention to rest, keep your work and rest routine, do not overwork, and do not overeat, because eating and overworking can also increase the burden on the heart.