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Methods A double-blind random - ized multicenter clinical trial was conducted . The foreign cefmetazole was used as the control drug .

方法采用双盲、随机对照、多中心试验设计，以进口头孢美唑钠为对照药物。

Methods : A clinical trial by randomized , double-blind , parallel control was conducted . The control drug was imported cefmetazole .

方法：采用双盲、随机、平行对照试验设计，以进口头孢美唑钠为对照药物。

The maximum application was cephalosporins antibiotics ; ranked the top three were cefixime capsule , injection cefmetazole sodium , sustained-release tablets cefalexin .

应用量最大的为头孢菌素类抗菌药物：排名前三位分别为头孢克肟胶囊、注射用头孢美唑钠、头孢氨苄缓释片。

Study on synthetic method of cefmetazole

头孢美唑合成方法研究

Conclusion : The method mentioned in this study can eliminate the antibacterial effect of injecting cefmetazole , therefore the examination was of nicety and reliability .

结论：该法能消除注射用头孢美唑的抑菌作用，使无菌检查结果准确、可靠。