adrenaline , which stimulates both alpha- and beta-adrenoceptors , produced small inhibition , no effect , or a degree of stimulation.5 phentolamine , an alpha-adrenoceptor blocking agent , produced an effect opposite to that of the alpha-adrenoceptor stimulants , i.e . a significant inhibition of the hfc of human isolated leucocytes .
C0001643
beta-adrenoceptors
C0086418
human