isoproterenol ( iso ) was administered as bolus injections before ( 0.01 , 0.03 , and 0.1 micrograms/kg , i.v . ) and after ( 0.01-3 micrograms/kg , i.v . ) infusions of diprafenone or propafenone ( 0.3 , 1 , and 3 mg/kg ) or propranolol ( 0.03 , 0.1 , and 0.3 mg/kg , i.v . ) .
C0033429
propafenone
C0033497
propranolol