Active Ingredient(s): Procainamide
FDA Approved: * January 31, 1996
Pharm Company: * KING PHARMS
Category: Irregular Heartbeat (Arrhythmia)

Procainamide (PCA) is a medication of the antiarrhythmic class used for the treatment of cardiac arrhythmias. It is classified by the Vaughan Williams classification system as class Ia; thus it is a sodium channel blocker of cardiomyocytes. In addition to blocking the INa current, it inhibits the IKr rectifier K+ current.[1] Procainamide is also known to induce a voltage-dependent open channel block on the batrachotoxin (BTX)-activated sodium channels in cardiomyocytes. ... [wikipedia]

* May have multiple approval dates, manufacturers, or labelers.
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