in a randomized , double-blind study , we administered equipotent doses of propranolol ( 10 , 20 , and 40 mg four times a day ) and pindolol ( 2.5 , 5 , and 10 mg four times a day ) , a beta blocker with significant isa , to 52 patients with angina .
C0031937
pindolol
C0002962
angina