注射用盐酸吉西他滨冻干制剂的制备方法
申请公布号:CN102641248A
申请号:CN201210118494.4
申请日期:2012.04.20
申请公布日期:2012.08.22
发明人:易镇海;李方芝
分类号:A61K9/19(2006.01)I;A61K31/7068(2006.01)I;A61P35/00(2006.01)I
主分类号:A61K9/19(2006.01)I
代理人:杨柳林
地址:433300 湖北省荆州市监利县城东工业园
摘要:本发明公开了一种注射用盐酸吉西他滨冻干制剂的制备方法,它包括以下步骤:A、预冻:首先将盐酸吉西他滨溶液降温至-12℃~-14℃,然后将导热油以1℃/10min的速度降至-20℃,保温2~3h,待制品温度降至-16~-20℃后,迅速降温至-40±2℃,保温4~5h;B、升华干燥:箱体内抽真空至7~12帕,以1~2℃/h的速度对导热油进行升温,当导热油温度升至0℃后保温,总时间应不少于30h,样品和导热油的温差应小于15~20℃;C、解析干燥:以每1℃/10min的速度对导热油升温,将制品升温至40±2℃,保温3~5h。本发明制备的冻干制剂具有制品松疏、质量稳定、复溶快、澄明度好等特点。
主权项:一种注射用盐酸吉西他滨冻干制剂的制备方法,包括有预冻、升华干燥、解析干燥工艺步骤,其特征在于:A、预冻:首先将盐酸吉西他滨溶液降温至‑12℃~‑14℃,然后将导热油以1℃/10min的速度降至‑20℃,保温2~3h,待制品温度降至‑16~‑20℃后,迅速降温至‑40±2℃,保温4~5h;B、升华干燥:箱体内抽真空至7~12帕,以1~2℃/h的速度对导热油进行升温,当导热油温度升至0℃后保温,保温总时间应不少于30h,样品和导热油的温差应小于15~20±2℃;C、解析干燥:以每1℃/10min的速度对导热油升温,将制品升温至40±2℃,保温3~5h。
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