Antiarrhythmic Drugs: Restoring the Heart’s Natural Rhythm
Antiarrhythmic drugs are medications used to treat abnormal heart rhythms, medically known as arrhythmias. The heart normally beats in a steady, coordinated pattern controlled by electrical impulses. When these electrical signals become irregular—too fast, too slow, or chaotic—it can lead to symptoms such as palpitations, dizziness, shortness of breath, or even life-threatening complications. Antiarrhythmic drugs help restore and maintain a normal heart rhythm.
Understanding Arrhythmias
Arrhythmias occur when the electrical conduction system of the heart malfunctions. The heart’s rhythm is typically regulated by the sinoatrial (SA) node, often called the natural pacemaker. Disruptions in this system can cause conditions such as atrial fibrillation, ventricular tachycardia, or bradycardia. Depending on the severity and type, treatment may involve lifestyle changes, medical procedures, or medication.
Antiarrhythmic drugs are often prescribed when symptoms are persistent, when arrhythmias increase the risk of stroke, or when they interfere with normal heart function.
How Antiarrhythmic Drugs Work
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