to assess the effects of verapamil and nifedipine on left ventricular function at rest and during exercise in patients with prinzmetal 's variant angina pectoris , 10 patients ( 6 men and 4 women with a mean age of 52 years ) with variant angina were each treated for 2 months periods with placebo , verapamil ( 400 +/- 80 mg/day , mean +/- standard deviation [ sd ] ) and nifedipine ( 82 +/- 31 mg/day ) .
C0002963
variant angina
C0042523
verapamil