during a 90-min infusion of propranolol ( 10 mg iv + 80 micrograms/min ) in 12 normal subjects , heart rate fell from 56 +/- 2 to 49 +/- 2 ( se ) beats/min ( p less than 0.001 ) , but there was no fall in mean arterial blood pressure ( 84 +/- 3 mmhg before and 86 +/- 3 mmhg after propranolol ) .
C0020649
fall in
C0033497
propranolol