19 results
Drugs affecting the cardiac action potential. The sharp rise in voltage ("0") corresponds to the influx
Drugs affecting ... repolarizing eflux of potassium ... #Pathophys #Pharmacology ... #Cardiology #Antiarrhythmics ... #Classes #Effect
Antiarrhythmic Drugs

CLASS IA
 • Procainamide, Quinidine, Disopyramide
CLASS 1B
 • Lidocaine, Mexiletine
CLASS 2
 • Propranolol, Esmolol
CLASS 4
Antiarrhythmic Drugs ... CLASS IA • ... Adenosine, Magnesium, Potassium ... Classification #Pharmacology ... #cardiology
Potassium Channel Blockers - Medications
1. Cardiovascular Drugs
2. Psychiatric drugs
3. Other drugs
4. Synthetic opioids: Levomethadyl 
5. Opium
Potassium Channel ... Other drugs 4. ... Organophosphates #Potassium ... #Medications #Differential ... #Diagnosis #Pharmacology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
1 - Sodium Channel ... 3 - Potassium Channel ... inotropy) ACCP Cardiology ... Vaughan #Williams #Pharmacology ... pathophysiology #cardiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... 3 - Potassium Channel ... inotropy) ACCP Cardiology ... Antiarrhythmics #Pharmacology ... pathophysiology #phases #cardiology
Class III Antiarrhythmics - Potassium Channel Blockers - Indications and Side Effects
Amiodarone
 • Suppression of VT
Class III Antiarrhythmics ... - Potassium Channel ... a-flutter (when other drugs ... #pharmacology # ... cardiology
Causes of Drug-Induced Cardiomyopathies

#DrugInduced #Medications #Cardiomyopathy #Cardiomyopathies #Differential #Causes #Cardiology #Pharmacology
Causes of Drug-Induced ... Cardiomyopathies #Differential ... #Causes #Cardiology ... #Pharmacology
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
Mechanisms of Drug-Induced ... Heparin) • Sodium-channel ... #hyperkalemia #differential ... pathophysiology #pharmacology ... #potassium #medications
Causes of Palpitations
 • ARRHYTHMiA 
 • SINUS ARRYTHMIA 
 • ATRIAL FIBRILLATION 
 • ATRIAL
Causes of Palpitations ... • SODIUM CHANNEL ... #Palpitations #Causes ... #Differential # ... Diagnosis #Cardiology
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
Common sodium channel ... Antimalarial drugs ... widening #ECG #EKG #Pharmacology ... Toxicology #Diagnosis #Differential ... #Drugs #Classes