据报道，盐酸氧丙诺洛尔是一种非选择性的β-AR（β-肾上腺素能受体）抑制剂，也显示出内在的拟交感神经活性。盐酸羟丙泊洛还显示出稳定细胞膜和降低血浆肾素活性的能力。另外的数据表明，盐酸奥普萘洛尔显示出抵消β-激动剂对小胶质细胞增殖的抑制作用的能力。 Oxprenolol hydrochloride has been reported to be a non-selective β-AR (β-adrenergic receptor) inhibitor that also displays intrinsic sympathomimetic activity. Oxprenolol hydrochloride also shows the ability to stabilize cellular membranes and reduce plasma renin activity. Additional data suggests that Oxprenolol hydrochloride demonstrates the ability to counteract the suppressive effects of β-agonist on microglial proliferation.