13 results
Membrane Actions of Antiarrhythmic Drugs

#Membrane #Channels #Actions #Antiarrhythmic #Drugs #Medications #Pharmacology #Cardiology #Table
#Membrane #Channels ... #Actions #Antiarrhythmic ... #Drugs #Medications ... #Pharmacology # ... Cardiology #Table
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
Antiarrhythmic Medications ... agents - Sodium Channel ... agents - Potassium Channel ... agents - Calcium Channels ... #pharmacology #
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
- Sodium Channel ... Subclasses, Mechanisms, Indications ... #Sodium #Channel ... #pharmacology # ... table #comparison
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Antiarrhythmics ... CLASS 1 - Sodium Channel ... Block fast Na+ channels ... 3 - Potassium Channel ... Vaughan #Williams #Pharmacology
Class I Antiarrhythmics and their Key Pharmacologic Properties

Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer")
Class IB
Class I Antiarrhythmics ... Block fast Na+ channels ... on EKG • Na+ channel ... on K+ channels ... Agents #Cardiology
Drugs affecting the cardiac action potential. The sharp rise in voltage ("0") corresponds to the influx
affecting the cardiac action ... to the sodium-channel ... voltage-sensitive calcium channels ... #Pathophys #Pharmacology ... #Cardiology #Antiarrhythmics
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics ... Pharmacology Summary ... inotropy) ACCP Cardiology ... @accpcardprn #Antiarrhythmics ... #Pharmacology #
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Ib, Ic) - Na+ Channel ... Class III - K+ Channel ... Blockade • Prolongs action ... Class IV - Ca2+ Channel ... #pharmacology
Class III Antiarrhythmics - Potassium Channel Blockers - Indications and Side Effects
Amiodarone
 • Suppression of VT
- Potassium Channel ... Blockers - Indications ... #Potassium #Channel ... #Blockers #pharmacology ... #cardiology
Sedative-Hypnotic Drugs
Benzodiazepines:
 - Bind to specific GABAA receptor subunits at central nervous system (CNS) neuronal synapses
GABA-mediated chloride ion channel ... GABA-mediated chloride ion channel ... GABAA receptors, acting ... #pharmacology # ... comparison #table