4 results
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Classification: CLASS ... duration: - CLASS ... 1C: Strong Blockade ... & Na channels ... Vaughan #Williams #Pharmacology
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
- Strong Medicine ... #Blockers #ClassI ... #Na #cardiology ... #pharmacology # ... table #comparison
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Classification: CLASS ... duration - CLASS ... duration - CLASS ... 1C: Strong Blockade ... & AP duration CLASS
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Classification Class ... (Ia, Ib, Ic) - Na ... Widens QRS complex Class ... prolongs PR interval Class ... Classification #Classes