1　病例介绍例1,女,33岁,因转移性右下腹痛5ｄ入院,诊断为阑尾周围脓肿,行阑尾周围脓肿切开引流术。静脉滴注环丙沙星(本院制剂室生产)0.2ｇ,ｂｉｄ,甲硝唑0.5ｇ,ｂｉｄ。术后头晕、失眠,考虑手术疼痛引起,未予注意。用药第7天,出现幻觉、精神错乱、多语。始考虑药物所致精神失 Case description 1 cases, female, 33 years old, admitted to the hospital because of metastatic right lower abdominal pain 5d, diagnosed as abscess around the appendix, abscess incision and drainage around the appendix. Intravenous ciprofloxacin (hospital preparation room production) 0.2g, bid, metronidazole 0.5g, bid. Dizziness, insomnia, consider the pain caused by surgery, did not pay attention. The first 7 days of medication, there is hallucinations, confusion, multilingual. Start thinking about the mental loss caused by drugs