Objective To prepare an auristilla with complex synergistic effect,consisting of levofloxacin and tinidazole,and to establish its quality control method.

• 目的采用复方协同效应制备以左氧氟沙星和替硝唑为主药的左氧唑滴耳液,并建立左氧唑滴耳液质量控制方法。