Class III antiarrhythmics Flashcards
1
Q
Main one in the class–blocks everything besides alpha receptors
Used for everything
A
Amiodarone
2
Q
Amiodarone with a shorter half life and no iodine molecule
Maintains sinus rhythm after conversions
A
Dronedarone
3
Q
Potassium channel AND beta blocker
A
Sotolol
4
Q
Pure Ikr blocker that CONVERTS new afib and aflutter
A
Ibutilide
5
Q
Pure Ikr blocker that MAINTAINS conversion of afib or aflutter
A
Dofetilide
6
Q
What do these drugs do to action potential duration?
A
INCREASE
7
Q
What does dronedarone do?
A
Maintains converted afib and aflutter
8
Q
What does sotalol do?
A
Potassium channel blocker AND beta blocker
