制剂:针剂10mg/1ml。用法:5~10mg,必要时肌注。极量20mg/次,60mg/d。注意:易成瘾,抑制呼吸。支气管哮喘、临产妇禁用。制剂:针剂50mg/1ml,100mg/2ml。注意:同吗啡。可致依赖性,婴幼儿慎用。制剂:片剂15mg、30mg/片。针剂15mg、30mg/支。用法:30mg,po,sos。制剂:胶囊剂50mg/粒。日剂量不超过400mg。肝肾功能不全、心脏疾患者慎用。 ......