Flumazenil(FM),1.4-imidazobenzodiazepine,is a specific benzodi-azepine(BZ)antagonist. The sedative,anxiolytic,muscle relaxant and anticonvulsanteffcts of HZs inhibited by competive replacement of BZ receptors at the CNShy ths drug.

• 氮马西尼（FM）即1.；4咪唑苯二氮，为一特异性苯二氮类（BZs）拮抗剂，通过竞争性置换中枢神经系统的BZs受体而拮抗HZs的镇静、抗焦虑、肌肉松弛及抗惊劂作用。