the comparative hypotensive effects of verapamil ( 80 to 160 mg 3 times a day ) and propranolol ( 40 to 120 mg 3 times a day ) were evaluated over 4 weeks , preceded by a 4-week placebo phase , in a double-blind protocol in 17 patients with mild to moderate hypertension .
C0033497
propranolol
C0020538
hypertension