in order to characterize the pharmacological properties of post-junctional alpha-adrenoceptors , the vasoconstricting effects of the non-specific alpha-adrenoceptor agonist noradrenaline , of the specific alpha 1-adrenoceptor agonist phenylephrine and of the specific alpha 2-adrenoceptor agonist azepexole and the interaction with the calcium entry blockers nifedipine and diltiazem were studied in hand veins of eight healthy volunteers .
C0034784
alpha-adrenoceptors
C0001639
alpha 2-adrenoceptor