Objective:To study the preparation and the freezing technique of sodium cefazolin freeze-dried ophthalmic solution and to establish a method of its quality control.

• 目的:研究头孢唑啉钠冻干滴眼剂的处方、冻干制备工艺,并建立其质量控制方法。方法:取头孢唑啉钠、羟丙甲基纤维素、活性炭和水制备冻干剂;