What is the main function of antiarrhythmics?

The main function of antiarrhythmics is to treat irregular heartbeats, which is essential for maintaining proper heart rhythm and function. These medications work by altering the electrical activity of the heart, helping to restore a normal rhythm and prevent episodes of tachycardia (fast heart rate) or bradycardia (slow heart rate). By effectively managing these arrhythmias, antiarrhythmics play a crucial role in reducing the risk of serious complications, such as strokes or heart failure, that can arise from untreated irregular heart rhythms.

The other options represent different functions entirely: lowering blood pressure is typically the role of antihypertensive medications, inducing sleep pertains to sedatives or hypnotics, and alleviating pain is the function of analgesics. Understanding the specific role of various classes of medications is vital in medication administration and patient safety, particularly in the context of medication assistants who are responsible for assisting individuals in managing their health conditions.