The top four prescribed cardiovascular drugs include all the following except:

A. lisinopril (Zestril)
B. quinidine sulfate (Quinidex)
C. atorvastatin (Lipitor)
D. amlodipine (Norvasc)

b
Rationale: Quinidine sulfate is not one of the top four most prescribed cardiovascular drugs. The top four of these drugs are: (1) atorvastatin (Lipitor), (2) amlodipine (Norvasc), (3) lisinopril (Zestril), and (4) digoxin (Lanoxin).