Method of preparing sterile essentially amorphous cefazolin for
reconstitution for parenteral administration
    12.
    发明授权
    Method of preparing sterile essentially amorphous cefazolin for reconstitution for parenteral administration 失效
    制备用于肠胃外给药重建的无菌基本无定形头孢唑啉的方法

    公开(公告)号:US4002748A

    公开(公告)日:1977-01-11

    申请号:US650210

    申请日:1976-01-19

    CPC classification number: A61K31/545

    Abstract: Sterile, essentially amorphous cefazolin sodium for parenteral administration, having an improved solubility on reconstitution, is prepared by a freeze-drying process wherein a sterile solution of from about 10 to about 25 percent (W/V) of cefazolin sodium is exposed to an environment wherein the temperature is held at from about minus 50.degree. C. to minus 55.degree. C. until the temperature of the solution (frozen) is reduced to minus 48.degree. C. to minus 55.degree. C. before subjecting said frozen solution to a high vacuum and a moderate amount of heat to sublime the water therefrom.

    Abstract translation: 通过冷冻干燥方法制备无菌的,用于肠胃外给药的无定形头孢唑啉钠,其具有改善的重建溶解性,其中约10至约25%(W / V)头孢唑啉钠的无菌溶液暴露于环境中 其中将温度保持在约零下50摄氏度至零下55摄氏度,直至将溶液(冷冻)的温度降低至零下至零下55摄氏度,然后将所述冷冻溶液置于高温 真空和适度的热量以使水从中升华。

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