to compare a propranolol-verapamil with a propranolol-nifedipine combination in patients with severe angina of effort , 16 patients ( 11 men and 5 women , aged 56 +/- 8 years [ mean +/- standard deviation ] ) with more than 5 episodes/week of angina and a positive exercise tolerance test despite propranolol ( 229 +/- 44 mg/day [ range 180 to 360 ] ) were maintained on this dose of propranolol and , in addition , received verapamil ( 360 mg/day ) and nifedipine ( 60 mg/day ) for 3 weeks each in a double-blind , randomized fashion .
C0002962
angina
C0033497
propranolol