鹽酸布比卡因抑制劑Bupivacaine Hydrochloride?is a long-acting, amide-type local anesthetic. Bupivicaine reversibly binds to specific?sodium ion?channels in the neuronal membrane, resulting in a decrease in the voltage-dependent membrane permeability to?sodium?ions and membrane stabilization; inhibition of depolarization and nerve impulse conduction; and a reversible loss of sensation.