Sat27November0556PM 46

Which class of antiarrhythmic drug does propranolol belong to?

(Please select 1 option)

IV

II This is the correct answer

V

III Incorrect answer selected

I

Explanation

Propranolol is a class II antiarrhythmic drug which works by beta 1 adrenergic blockade.

Class I drugs are sodium channel blockers such as Flecainide

Class III drugs are potassium channel blockers such as amiodarone.

Class IV drugs are calcium channel blockers such as Verapamil.

Class V drugs are agents which don't fit into class I-IV such as digoxin or adenosine.

Answer Statistics

1

8%

2

76%

3

2%

4

11%

5

6%

Times answered: 285