these results suggest that pdbu may have a differential effect on the responses of the two subtypes of alpha-adrenoceptors-potentiation for the alpha 2-adrenoceptors in the rat saphenous vein and inhibition for the alpha 1-adrenoceptors in the rat tail artery .
C0034784
alpha-adrenoceptors
C0001639
alpha 2-adrenoceptors