Question

Labetalol has: 

A. More potent β adrenergic blocking than α blocking activity 

B. More potent α adrenergic blocking than β blocking activity 

C. Equal α and β adrenergic blocking activity 

D. β₁ agonistic activity in addition to α and β adrenergic blockade

Answer 1

A. More potent β adrenergic blocking than α blocking activity