The role of cardiotonic drugs_What are cardiotonic drugs

Most people are familiar with cardiotonic drugs. We all know that cardiotonic drugs are usually used in the treatment of many diseases, especially for people with poor heart function. There are many types of cardiotonic drugs, and different types of cardiotonic drugs are used for different diseases. However, when purchasing them, you must go to a regular professional pharmacy or go directly to the hospital to purchase them. Although cardiotonic drugs are common, many people do not know much about them.

What are cardiotonic drugs?

Cardiotonic drugs have positive inotropic effects, can increase myocardial contractility, improve myocardial pump function, dilate blood vessels, reduce myocardial oxygen consumption, improve myocardial cell metabolism, protect ischemic and hypoxic myocardium, and improve. Therefore, many people usually use cardiotonic drugs to treat these diseases.

When are cardiac stimulants usually administered?

When heart failure occurs, cardiotonic drugs, which are heart stimulants, are necessary. Cardiotonic drugs are used for heart failure, but they cannot be given in large quantities through intravenous drips, as this will increase the burden on the heart. Therefore, cardiac stimulants can only be used in extraordinary times.

Heart valve disease, coronary artery sclerosis, hypertension, endocrine diseases, bacterial toxins, acute pulmonary infarction, emphysema or other chronic lung diseases can all cause heart disease and produce symptoms of heart failure. Pregnancy, fatigue, rapid intravenous fluid replacement, etc. can increase the burden on the diseased heart and induce heart failure.

By increasing the contractility of the myocardium, sufficient cardiac output is ensured; by relieving reflex vasoconstriction, the afterload of the heart is reduced. Digitalis can significantly slow down the heart rate and reduce ventricular diastolic pressure, thus helping to restore myocardial metabolism and improve cardiac function. Therefore, cardiac stimulants are given in the following situations:

Systolic dysfunction with cardiomegaly.

Arrhythmias: supraventricular tachycardia, rapid atrial fibrillation, atrial flutter, patients with severe heart failure who are not taking digitalis preparations, and those with ventricular premature beats. Asymptomatic left ventricular dysfunction.

What is the role of cardiotonic drugs

Cardiotonic drugs are drugs that can strengthen the contraction of heart muscles, slow down the heart beats, thereby increasing the amount of blood discharged by the heart and improving blood circulation.

Let me give you an example of a cardiotonic, the others have similar effects. Cyclic adenosine meglumine is a non-digitalis cardiotonic agent with positive inotropic effect. It can increase myocardial contractility, improve myocardial pump function, dilate blood vessels, reduce myocardial oxygen consumption, improve myocardial cell metabolism, protect ischemic and hypoxic myocardium, and improve the function of sinoatrial node P cells. Generally speaking, the faster and stronger the effects of this type of drug, the greater the corresponding toxic side effects.