therefore , 24 patients with mild to moderate hypertension ( diastolic blood pressure 95 to 114 mm hg before therapy ) were randomly assigned to receive either a sustained-release preparation of diltiazem ( n = 13 ) or placebo ( n = 11 ) for 16 weeks in a double-blind , parallel-group protocol .
C0020538
hypertension
C0012373
diltiazem