Oxybuprocaine结合于钠离子通道,并可逆地稳定神经细胞膜从而降低其对钠离子的渗透性。神经元细胞膜的去极化被抑制,从而阻断了神经冲动的起始和传导。Oxybuprocaine与bupivacaine或者lidocaine相似,会产生剂量相关的运动机能、本体感觉和伤害感受的脊髓封锁。
Oxybuprocaine hydrochloride (Benoxinate hydrochloride; 27.6, 51.7, 103.5, 413.9 μg; s.c.) provides a dose-dependent block to pinpricks in rats. Oxybuprocaine hydrochloride (27.6 μg) produces 100% of sensory/nociceptive block.