Tikosyn Classification

Belonging to a classification of drugs called Class III antiarrhythmics, Tikosyn® (dofetilide) is prescribed to help treat certain types of an irregular heart rate known medically as arrhythmias. Specifically, Tikosyn is approved to help get the heart back to a regular rhythm and maintain a regular rhythm in adults who have atrial fibrillation (commonly referred to as "a-fib") or atrial flutter.
 
Atrial fibrillation or atrial flutter can occur when an electrical signal comes through too soon and prematurely activates heart tissue, leading to a rapid heart rate. Class III antiarrhythmic medications like Tikosyn work by blocking potassium channels in the heart. This prevents potassium form leaving the cells in the heart muscle. This action helps the heart tissue resist any premature electrical signal.
 
(For more information on this classification of drugs, click Tikosyn. This resource further explores how this medication works, dosing guidelines, potential side effects, and safety concerns.)
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