11 results
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
Drugs that Impair Renal Potassium Excretion 

Decreased ENaC channel function: Amiloride, Triamterene, Pentamidine
Decreased Aldosterone Synthesis: Heparin,
Drugs that Impair ... Renal Potassium ... ACE inhibitors, ARBs ... #Hyperkalemia #Pathophysiology ... #Pharmacology #
Here’s a review of the Renin-Angiotensin-Aldosterone system (RAAS)

This is a very common pathway that clinicians should
RAAS inhibiting drug ... classes (Aliskiren ... , ACEI, ARB, and ... RAAS inhibiting drugs ... ReninAngiotensinAldosteroneSystem #RAAS #Pharmacology
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
Class III Antiarrhythmics - Potassium Channel Blockers - Indications and Side Effects
Amiodarone
 • Suppression of VT
Class III Antiarrhythmics ... a-flutter (when other drugs ... are contraindicated ... Channel #Blockers #pharmacology ... #cardiology
Digoxin Pharmacology and Pathophysiology
1) Na/K ATPase Pump - Digoxin works by directly binding to and inhibiting
Digoxin Pharmacology ... and Pathophysiology ... intracellular calcium causes ... #Pathophysiology ... #cardiology
Angiotensin Receptor Blockers 
Recommended Dose Conversions 

Valsartan 
Irbesartan 
Losartan 
Olmesartan 
Telmisartan 
Candesartan 
Azilsartan 
Eprosartan 

A few
in that class. ... recalls, this drug ... class is still ... for increased potassium ... Table #Dosing #Pharmacology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
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 ... #pathophysiology ... #phases #cardiology
Medications Used in Congestive Heart Failure

In CHF, the heart is failing as a pump; cardiac output
CHF also causes ... renin-angiotensin system are ... failure is chronic Drug ... #Pharmacology #CHF ... #HeartFailure #Cardiology