It is important to understand that the concomitant use of a non-selective beta- antagonist along with a slow calcium channel blocker may result in:

a. Hypertension
b. Tachycardia
c. Broncodilation
d. Asystole

d
Rationale: a. Hypotension would result
b. Bradycardia would result
c. Broncoconstriction would result as a result of the Beta two blockade.
d. The concomitant use of a beta blocking agent such as propranolol and a slow calcium channel blocker such as verapamil may result in irreversible asystole.