clonidine ( ic50 17 nm ) , oxymetazoline ( ic50 63 nm ) , and alpha-methylnoradrenaline ( apparent ic50 35 nm , determined in the presence of cocaine and propranolol ) decreased the stimulation-evoked overflow of 3h-noradrenaline by 26 , 49 , and 78 % , respectively , but not methoxamine up to 100 microm ( propranolol present ) .
C0025805
alpha-methylnoradrenaline
C0028351
noradrenaline