Antiarrhythmics are a class of medications used to treat irregular heartbeats, known as arrhythmias. These drugs work by modifying the electrical signals in the heart, helping to restore a normal rhythm. They can be prescribed for various conditions, including atrial fibrillation and ventricular tachycardia. There are several types of antiarrhythmics, categorized based on their mechanisms of action. Some common types include sodium channel blockers, beta-blockers, and potassium channel blockers. While effective, these medications can have side effects and may not be suitable for everyone, so medical supervision is essential.