using a previously described canine model of theophylline poisoning , invasive cardiovascular parameters were determined along with oxygen consumption ( vo2 ) , arterial ph , base deficit , and plasma epinephrine ( epi ) and norepinephrine ( nepi ) concentrations in four control animals ( group 1 ) and in four animals receiving 140 mg/kg aminophylline intravenously ( group 2 ) .
C0014563
epinephrine
C0028351
norepinephrine