dissociation constants for the alpha-1 adrenergic agonists , phenylephrine and cirazoline , and the alpha-2 adrenergic agonist , uk 14,304 , were determined by analysis of concentration-effect curves to the agonists under control conditions and after partial inactivation of alpha adrenoceptors by phenoxybenzamine .
C1373109
alpha-1
C0031469
phenylephrine