the order of potency of a series of alpha-adrenoreceptor agonists was ( - ) -adrenaline greater than oxymetazoline greater than ( +/- ) -na approximately ( - ) -phenylephrine greater than methoxamine in the mca and ( +/- ) -na greater than ( - ) -phenylephrine in the ma .
C0014563
adrenaline
C0028351
na