verapamil , 480 mg/day , reduced anginal frequency from 5.6 +/- 7.3 to 2.2 +/- 3.9 attacks per week ( p less than 0.001 ) and nitroglycerin consumption from 3.4 +/- 4.9 to 1.2 +/- 2.5 tablets per week ( p less than 0.05 ) compared with placebo .
C0002962
anginal
C0017887
nitroglycerin