forty outpatients ( 11 men and 29 women ) aged between 65 and 85 years ( mean age of 68 years ) with mild to moderate hypertension [ mean systolic/diastolic blood pressure ( sbp/dbp ) after 2 weeks on placebo of 175/102 mm hg ] were included in a randomized , double-blind , parallel-group study to compare the efficacy and tolerance of 10 mg of bisoprolol once daily ( o.d. , n = 20 ) and 20 mg of nifedipine sustained release ( sr ) b.i.d .
C0020538
hypertension
C0053799
bisoprolol