//fpnotebook.com/
Antiarrhythmic
Aka: Antiarrhythmic, Vaughn Williams Classification
- Preparations: Class I - Sodium Channel Blockade
- Class Ia: Lengthens action potential duration
- Quinidine
- Procainamide (Pronestyl)
- Disopyramide (Norpace)
- Amiodarone (also Class II, III, IV)
- Several non-classic Antiarrhythmics have Class Ia activity (e.g. Imipramine, a Tricyclic Antidepressant)
- Class Ib: Shortens action potential duration
- Lidocaine (Xylocaine)
- Tocainide (Tonocard)
- Mexiletine (Mexitil)
- Phenytoin (Dilantin)
- Class Ic: Slows conduction
- Flecainide (Tambocor)
- Encainide (Enkaid)
- Propafenone (Rythmol)
- Preparations: Class II - Beta Blocker
- Propranolol
- Metoprolol
- Atenolol
- Carvedilol (Coreg)
- Esmolol (Brevibloc)
- Sotalol (also Class III)
- Amiodarone (also Class Ia, III, IV)
- Preparations: Class III - Blocks potassiun channels, prolongs repolarization
- Bretylium (Bretylol)
- Sotalol
- Amiodarone (also Class Ia, II, IV)
- Dofetilide (Tikosyn)
- Dronedarone (Multaq)
- Preparations: Class IV - Calcium Channel Blocker, blocks slow calcium channel
- Verapamil (Calan)
- Diltiazem (Cardizem)
- Nifedipine
- Amiodarone (also Class Ia, II, III)
- References
- Helton (2015) Am Fam Physician 92(9): 793-800 [PubMed]