In vitro study | Arotinolol shows its selectivity of β-adrenergic receptors, the result of Arotinolol for β1 and β2 adrenoceptors in 125 I-ICYP binding to rat cerebral cortical membranes with pK i value of 9.74 and 9.26 respectively. The selectively of β1 and β2 is equal.
Arotinolol shows its potency for inhibiting the binding of the same radioligand to 5HT1B-serotonergic receptor site, Arotinolol displaces 125 I-ICYP binding to 5HT1B-receptors with the pK i values of 7.97 and 8.16 resepectively for β1 and β2 adrenergic receptors. |