Class 1
Slows the rate of conduction by preventing depolarization
What are sodium channel blockers
Diminish phase 4 depolarization
What are class 2 antiarrhythmic beta blockers
Decreased outflow of potassium during repolarization
Reduced automaticity at the SA node and slowed conduction velocity at the AV node
What are calcium channel blockers
Useful for treating atrial and ventricular dysrhythmia
What are dysopyramide and procainamide
Most widely used beta blocker for arrhythmia
What is metropolol
used for treatment of resistant v-tach and atrial dysrhythmias
What drug is amiodarone
Acts on both myocardial and smooth vascular tissue
What is verapamil
Class 1a sodium channel blockers
What drugs bind to open sodium channels to prevent influx
Action exerted by beta blockers
Decreaased heart rate and contractility
The only dysrhythmias CCB's are useful for
What are supraventricular dysrhythmias
2 examples of class 1 b sodium channel blockers
What are lidocaine and mexiletine
Used to treat ventricular arrhythmias
What are class 1b sodium channel blockers