16 results
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
Antiarrhythmic Medications ... Class III agents - Potassium ... Channel Blockers ... Antiarrhythmic #Medications ... Summary #Table #pharmacology
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
Heparin) • Sodium-channel ... • Exogenous (KCL ... #hyperkalemia #differential ... pathophysiology #pharmacology ... #potassium #medications
Potassium Channel Blockers - Medications
1. Cardiovascular Drugs
2. Psychiatric drugs
3. Other drugs
4. Synthetic opioids: Levomethadyl 
5. Opium
Potassium Channel ... Blockers - Medications ... ChannelBlockers #Medications ... #Differential # ... Diagnosis #Pharmacology
Antiseizure Drugs 
Sodium Channel Blockers: Carbamazepine, Oxcarbazepine, Eslicarbazepine, Lamotrigine, Lacosamide, Phenytoin, fosphenytoin
Broad Spectrum: Valproate, Levetiracetam, Brivaracetam,
Drugs Sodium Channel ... Blockers: Carbamazepine ... Tiagabine, Vigabatrin Potassium ... antiepileptic #medications ... #epilepsy #pharmacology
Antiarrhythmics - Sodium Channel Blockers
Subclasses, Mechanisms, Indications, Side Effects
la - Quinidine, Procainamide
lb - Lidocaine, Mexiletine
Ic -
Blockers Subclasses ... , Mechanisms, Indications ... #Blockers #ClassI ... #Na #cardiology ... #pharmacology #
Class III Antiarrhythmics - Potassium Channel Blockers - Indications and Side Effects
Amiodarone
 • Suppression of VT
Channel Blockers ... - Indications and ... #Channel #Blockers ... #pharmacology # ... cardiology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Blockers: • MOA ... repolarization CLASS 3 - Potassium ... Channel Blockers ... Vaughan #Williams #Pharmacology ... pathophysiology #cardiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... Blockers: • MOA ... repolarization CLASS 3 - Potassium ... Channel Blockers ... Antiarrhythmics #Pharmacology
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
Common sodium channel ... blockers which ... widening #ECG #EKG #Pharmacology ... #Medications #Toxicology ... #Diagnosis #Differential
Bradycardia - Differential Diagnosis Framework

BRADI Mnemonic
 • BRASH/Hyperkalemia
 • Reduced oxygen/Glucose/Temp
 • ACS
 • Drugs
 •
Bradycardia - Differential ... Heart block Medications ... : • Beta blockers ... • Calcium channel ... blockers • Digoxin