“IIH and INH produced reversible antagonism of the stimulant effect of epinephrine on the isolated guinea pig9s uterus and rat seminal vesicle; IIH was conisiderably more potent in this respect.”
“Inhibition of the autoxidation or copper-catalyzed oxidation of epinephrine Or norepinephrine likewise required high concentrations of IIH or INH.”