adrenergic effects on plasma levels of glucagon , insulin , glucose and free fatty acids were studied in fasted rabbits by infusing epinephrine , norepinephrine , isoproterenol , phentolamine ( an adrenergic alpha-receptor blocking drug ) and propranolol ( an adrenergic beta-receptor blocking drug ) .
C0014563
epinephrine
C0028351
norepinephrine