Vaughan williams classification class 3

Class 3 antiarrhythmics

The Vaughan Williams classification of antiarrhythmic agents divides these drugs into four main classes according to the mechanism of antiarrhythmic effect.
vaughan williams classification class 3

Vaughan Williams classification

Non-specific Beta blockers block both β 1 and β 2 receptor sites.

Class 2 antiarrhythmic drugs

Oral: 10–40 mg 3 or 4 times a day.
Classification of antiarrhythmic drugs with examples
Both forms have class III activity.