21 results
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... PhaseCa++ channels ... Classification: CLASS ... 1C: Strong Blockade ... Antiarrhythmics #Pharmacology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
• ↓ slope of phase ... 1C: Strong Blockade ... • ↓ slope of phase ... ↑ duration of phase ... Vaughan #Williams #Pharmacology
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
agents - Sodium Channel ... agents - Calcium Channels ... Eric Strong @DrEricStrong ... - Strong Medicine ... Summary #Table #pharmacology
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Ib, Ic) - Na+ Channel ... III - K+ Channel ... Eric Strong @DrEricStrong ... - Strong Medicine ... #cardiology #pharmacology
Class I Antiarrhythmics and their Key Pharmacologic Properties

Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer")
Class IB
and their Key Pharmacologic ... Block fast Na+ channels ... depolarization (phase ... involved in phase ... #Pharmacology #
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Antiarrhythmics - Sodium Channel ... Eric Strong @DrEricStrong ... - Strong Medicine ... #Blockers #ClassI ... Na #cardiology #pharmacology
ACA infarcts are rare because of the collateral circulation provided by the anterior communicating artery. ACA infarct
These are uncommon causes ... about 0.3%-4.4% of stroke ... cases in series ... anteriorcerebralartery #cva ... #stroke #huebner
Class III Antiarrhythmics - Potassium Channel Blockers - Indications and Side Effects
Amiodarone
 • Suppression of VT
Class III Antiarrhythmics ... - Potassium Channel ... Eric Strong @DrEricStrong ... - Strong Medicine ... #Blockers #pharmacology
SGLT2 inhibitors, also called gliflozins, are a class of medications that alter essential physiology of the
gliflozins, are a class ... inhibitors that modulate ... sodium/glucose channels ... pharmaceutical class ... (Farxiga®) and empagliflozin
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
and upbeat (fast phase ... toward forehead) in classic ... can be severe in stroke ... Usually little change ... head position change