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  • Title: Classification and pharmacology of antiarrhythmic drugs.
    Author: Kowey PR, Marinchak RA, Rials SJ, Bharucha DB.
    Journal: Am Heart J; 2000 Jul; 140(1):12-20. PubMed ID: 10874257.
    Abstract:
    Despite the emergence of several forms of nonpharmacologic therapy for cardiac arrhythmias, antiarrhythmic drugs continue to play an important role in the management of patients with this common clinical problem. The key to the proper use of antiarrhythmic drugs is a thorough knowledge of their mode of action and pharmacology. The pharmacology of antiarrhythmic drugs is particularly important because patients with cardiac arrhythmias frequently have multiorgan disease, which may influence the metabolism and elimination of antiarrhythmic drugs. The accumulation of toxic amounts of these agents can lead to dire effects including, but not limited to, ventricular proarrhythmia and malignant bradycardia. The goals of pharmacologic therapy of cardiac arrhythmia are to provide the maximum benefit in terms of arrhythmia suppression while maintaining patient safety. To accomplish these goals, a knowledge of the pharmacology of several antiarrhythmic drugs is mandatory.
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