CN117503714A - 一种注射用盐酸氨溴索冻干粉针及其制备方法 - Google Patents
一种注射用盐酸氨溴索冻干粉针及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种注射用盐酸氨溴索冻干粉针,由盐酸氨溴索、渗透压调节剂、pH缓冲剂、稳定剂组成,其中渗透压调节剂由甘露醇和葡聚糖组成,pH缓冲剂由乳酸和乳酸钠组成,稳定剂由聚乙烯醇、1,2‑丙二醇、二羟甲基丙酮组成,其中盐酸氨溴索、渗透压调节剂、pH缓冲剂、稳定剂的重量份比例为:1:2‑3:0.2:0.5‑1,本发明特有特定组合和比例的渗透压调节剂、pH缓冲剂、稳定剂能提高注射用盐酸氨溴索冻干粉针的纯度。
Description
技术领域
本发明涉及药物制剂技术领域,特别涉及一种注射用盐酸氨溴索冻干粉针及其制备方法。
背景技术
盐酸氨溴索主要用作祛痰药,可促进呼吸道内部粘稠分泌物的排除及减少粘液的滞留,因而显著促进排痰,适用于伴有痰液分泌不正常及排痰功能不良的急性、慢性呼吸系统疾病。
申请号2010106113359的中国专利,公开了一种盐酸氨溴索葡萄糖注射液及其制备方法,该注射液由盐酸氨溴索、葡萄糖、活性炭及注射用水组成;取50%的注射用水煮沸,加入葡萄糖溶解,再加入活性炭吸附,脱炭;随即充入氮气,再加入盐酸氨溴索溶解,补入余下注射用水,后降温至40-50℃,经0.22μm滤膜过滤、灌装。该发明存在如下不足:需要对注射用水煮沸、长时间通入氮气,成本高;同时处方中不含抗氧剂,贮存过程中稳定性较差。
申请号2011100481934的中国专利,公开了注射级盐酸氨溴索的精制方法和产品及其注射液,取纯度99%以上的盐酸氨溴索,以1:5.5-9.2加入70.2-88%乙醇水溶液,加热回流溶解,冷却结晶析出;取注射用水加热至40-50℃,搅拌加入精制的盐酸氨溴索、氯化钠、溶解、调pH4.8-5.1,加水至全量;加0.1%活性炭搅拌、过滤,再精滤、灌装。该发明存在如下不足:对盐酸氨溴索的初始纯度要求高,溶解速度慢,耗时长,且注射液的光照下稳定性较差。
申请号2008100091838的中国专利,公开了一种盐酸氨溴索冻干粉针,由盐酸氨溴索和甘露醇组成,没有使用缓冲剂,也没有调节pH值,稳定性差。
发明内容
鉴以此,本发明的目的在于提出一种注射用盐酸氨溴索冻干粉针及其制备方法。本发明的技术方案是这样实现的:
一种注射用盐酸氨溴索冻干粉针,由盐酸氨溴索、渗透压调节剂、pH缓冲剂、稳定剂组成,其中渗透压调节剂由甘露醇和葡聚糖组成,pH缓冲剂由乳酸和乳酸钠组成,稳定剂由聚乙烯醇、1,2-丙二醇、二羟甲基丙酮组成,其中盐酸氨溴索、渗透压调节剂、pH缓冲剂、稳定剂的重量份比例为:1:3:0.2:0.5。
所述注射用盐酸氨溴索冻干粉针,甘露醇与葡聚糖的重量比为1:2。
所述注射用盐酸氨溴索冻干粉针,乳酸和乳酸钠的重量比为1:3。
所述注射用盐酸氨溴索冻干粉针,聚乙烯醇、1,2-丙二醇、二羟甲基丙酮的重量比为2:2:1。
所述注射用盐酸氨溴索冻干粉针,制备方法包括以下步骤:
(1)将渗透压调节剂加入注射用水中,制得甘露醇和葡聚糖溶液;加入pH缓冲剂、和稳定剂,得盐酸氨溴索溶液;
(2)将步骤(1)的盐酸氨溴索溶液中加入活性炭,搅拌静置,然后粗滤脱炭;将粗滤脱炭后的盐酸氨溴索溶液过0.22μm无菌混合纤维素薄膜,制得纯化后的盐酸氨溴索溶液;
(3)将所述盐酸氨溴索溶液温度控制在50-60℃之间,并用pH缓冲剂调节pH值在6-7之间;
(4)将所述盐酸氨溴索溶液装于瓶中,半压塞后进行冻干,冻干依次包括步骤:预冻、一次干燥和二次干燥,所述预冻是在60min内将温度降至-45℃至-35℃之间,并在-45℃至-35℃之间预冻3-5小时;
(5)冻干结束后进行压塞、复压,制得注射用盐酸氨溴索冻干粉针。
所述注射用盐酸氨溴索冻干粉针,制备方法步骤(2)中所述活性炭在盐酸氨溴索溶液中的质量浓度为0.05-0.1%。
所述注射用盐酸氨溴索冻干粉针,制备方法所述步骤(2)中的搅拌静置是搅拌20-30min,然后静置15-20min。
所述注射用盐酸氨溴索冻干粉针,制备方法中所述一次干燥是在真空度10-15Pa的条件下,在7-9h之内将温度提高至-5至5℃之间,并在-5至5℃下保温5-8h。
所述注射用盐酸氨溴索冻干粉针,制备方法中所述二次干燥是在真空度0-10Pa和3-4h之内将温度提高至25-45℃,并在25-45℃保温6-9h。
上述试剂购于国药集团化学试剂有限公司,均符合药典或者行业标准。
有益效果:本发明所述的注射用盐酸氨溴索冻干粉针组分简单、质量稳定,减少存储过程中的杂质生成,使用时不良反应率低;同时避免氮气使用、加热温度适宜,成本低。
具体实施方式
下面结合具体实施方式,进一步阐述本发明。应理解,这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解,在阅读了本发明记载的内容之后,本领域技术人员可以对本发明作各种改动或修改,但这些等价形式同样落于本申请所附权利要求书所限定的范围。
实施例1:
处方:
组成 | 重量(g) |
盐酸氨溴索 | 10 |
甘露醇 | 10 |
葡聚糖 | 20 |
乳酸 | 0.5 |
乳酸钠 | 1.5 |
聚乙烯醇 | 2 |
1,2-丙二醇 | 2 |
二羟甲基丙酮 | 1 |
制备方法包括以下步骤:
(1)将渗透压调节剂加入注射用水中,制得甘露醇和葡聚糖溶液;加入盐酸氨溴索、pH缓冲剂、稳定剂,得盐酸氨溴索溶液;
(2)将步骤(1)的盐酸氨溴索溶液中加入活性炭,活性炭在盐酸氨溴索溶液中的质量浓度为0.05%,搅拌30min,然后静置15min,然后粗滤脱炭;将粗滤脱炭后的盐酸氨溴索溶液过0.22μm无菌混合纤维素薄膜,制得纯化后的盐酸氨溴索溶液;
(3)将所述盐酸氨溴索溶液温度控制在50-60℃之间,并用pH缓冲剂调节pH值在6-7之间;
(4)将所述盐酸氨溴索溶液装于瓶中,半压塞后进行冻干,冻干依次包括步骤:预冻、一次干燥和二次干燥,一次干燥是在真空度10Pa的条件下,在9h之内将温度提高至-5至5℃之间,并在-5至5℃下保温5h;二次干燥是在真空度0-10Pa和4h之内将温度提高至25℃,并在25℃保温6-9h;所述预冻是在60min内将温度降至-45℃至-35℃之间,并在-45℃至-35℃之间预冻3小时;
(5)冻干结束后进行压塞、复压,制得注射用盐酸氨溴索冻干粉针,规格为每支30mg盐酸氨溴索。
实施例2:
处方:
组成 | 重量(g) |
盐酸氨溴索 | 10 |
甘露醇 | 10 |
葡聚糖 | 10 |
乳酸 | 0.5 |
乳酸钠 | 1.5 |
聚乙烯醇 | 5 |
1,2-丙二醇 | 4 |
二羟甲基丙酮 | 1 |
制备方法包括以下步骤:
(1)将渗透压调节剂加入注射用水中,制得甘露醇和葡聚糖溶液;加入盐酸氨溴索、pH缓冲剂、稳定剂,得盐酸氨溴索溶液;
(2)将步骤(1)的盐酸氨溴索溶液中加入活性炭,活性炭在盐酸氨溴索溶液中的质量浓度为0.1%,搅拌20min,然后静置20min,然后粗滤脱炭;将粗滤脱炭后的盐酸氨溴索溶液过0.22μm无菌混合纤维素薄膜,制得纯化后的盐酸氨溴索溶液;
(3)将所述盐酸氨溴索溶液温度控制在50-60℃之间,并用pH缓冲剂调节pH值在6-7之间;
(4)将所述盐酸氨溴索溶液装于瓶中,半压塞后进行冻干,冻干依次包括步骤:预冻、一次干燥和二次干燥,一次干燥是在真空度15Pa的条件下,在7h之内将温度提高至-5至5℃之间,并在-5至5℃下保温5-8h;二次干燥是在真空度0-10Pa和4h之内将温度提高至45℃,并在45℃保温6-9h;所述预冻是在60min内将温度降至-45℃至-35℃之间,并在-45℃至-35℃之间预冻5小时;
(5)冻干结束后进行压塞、复压,制得注射用盐酸氨溴索冻干粉针,规格为每支30mg盐酸氨溴索。
实施例3:
处方:
组成 | 重量(g) |
盐酸氨溴索 | 10 |
甘露醇 | 15 |
葡聚糖 | 15 |
乳酸 | 0.5 |
乳酸钠 | 1.5 |
聚乙烯醇 | 3 |
1,2-丙二醇 | 3 |
二羟甲基丙酮 | 1 |
制备方法包括以下步骤:
(1)将渗透压调节剂加入注射用水中,制得甘露醇和葡聚糖溶液;加入盐酸氨溴索、pH缓冲剂、稳定剂,得盐酸氨溴索溶液;
(2)将步骤(1)的盐酸氨溴索溶液中加入活性炭,活性炭在盐酸氨溴索溶液中的质量浓度为0.07%,搅拌25min,然后静置18min,然后粗滤脱炭;将粗滤脱炭后的盐酸氨溴索溶液过0.22μm无菌混合纤维素薄膜,制得纯化后的盐酸氨溴索溶液;
(3)将所述盐酸氨溴索溶液温度控制在50-60℃之间,并用pH缓冲剂调节pH值在6-7之间;
(4)将所述盐酸氨溴索溶液装于瓶中,半压塞后进行冻干,冻干依次包括步骤:预冻、一次干燥和二次干燥,一次干燥是在真空度12Pa的条件下,在8h之内将温度提高至-5至5℃之间,并在-5至5℃下保温7h;二次干燥是在真空度0-10Pa和4h之内将温度提高至35℃,并在35℃保温7h;所述预冻是在60min内将温度降至-45℃至-35℃之间,并在-45℃至-35℃之间预冻4小时;
(5)冻干结束后进行压塞、复压,制得注射用盐酸氨溴索冻干粉针,规格为每支30mg盐酸氨溴索。
对比实施例1:
处方:
组成 | 重量(g) |
盐酸氨溴索 | 10 |
甘露醇 | 10 |
乳酸 | 0.5 |
乳酸钠 | 1.5 |
聚乙烯醇 | 2 |
1,2-丙二醇 | 2 |
二羟甲基丙酮 | 1 |
制备方法包括以下步骤:
(1)将渗透压调节剂加入注射用水中,制得甘露醇溶液;加入盐酸氨溴索、pH缓冲剂、稳定剂,得盐酸氨溴索溶液;
(2)将步骤(1)的盐酸氨溴索溶液中加入活性炭,活性炭在盐酸氨溴索溶液中的质量浓度为0.05%,搅拌30min,然后静置15min,然后粗滤脱炭;将粗滤脱炭后的盐酸氨溴索溶液过0.22μm无菌混合纤维素薄膜,制得纯化后的盐酸氨溴索溶液;
(3)将所述盐酸氨溴索溶液温度控制在50-60℃之间,并用pH缓冲剂调节pH值在6-7之间;
(4)将所述盐酸氨溴索溶液装于瓶中,半压塞后进行冻干,冻干依次包括步骤:预冻、一次干燥和二次干燥,一次干燥是在真空度10Pa的条件下,在9h之内将温度提高至-5至5℃之间,并在-5至5℃下保温5h;二次干燥是在真空度0-10Pa和4h之内将温度提高至25℃,并在25℃保温6-9h;所述预冻是在60min内将温度降至-45℃至-35℃之间,并在-45℃至-35℃之间预冻3小时;
(5)冻干结束后进行压塞、复压,制得注射用盐酸氨溴索冻干粉针,规格为每支30mg盐酸氨溴索。
对比实施例2:
处方:
组成 | 重量(g) |
盐酸氨溴索 | 10 |
葡聚糖 | 10 |
乳酸 | 0.5 |
乳酸钠 | 1.5 |
聚乙烯醇 | 5 |
1,2-丙二醇 | 4 |
二羟甲基丙酮 | 1 |
制备方法包括以下步骤:
(1)将渗透压调节剂加入注射用水中,制得葡聚糖溶液;加入盐酸氨溴索、pH缓冲剂、稳定剂,得盐酸氨溴索溶液;
(2)将步骤(1)的盐酸氨溴索溶液中加入活性炭,活性炭在盐酸氨溴索溶液中的质量浓度为0.1%,搅拌20min,然后静置20min,然后粗滤脱炭;将粗滤脱炭后的盐酸氨溴索溶液过0.22μm无菌混合纤维素薄膜,制得纯化后的盐酸氨溴索溶液;
(3)将所述盐酸氨溴索溶液温度控制在50-60℃之间,并用pH缓冲剂调节pH值在6-7之间;
(4)将所述盐酸氨溴索溶液装于瓶中,半压塞后进行冻干,冻干依次包括步骤:预冻、一次干燥和二次干燥,一次干燥是在真空度15Pa的条件下,在7h之内将温度提高至-5至5℃之间,并在-5至5℃下保温5-8h;二次干燥是在真空度0-10Pa和4h之内将温度提高至45℃,并在45℃保温6-9h;所述预冻是在60min内将温度降至-45℃至-35℃之间,并在-45℃至-35℃之间预冻5小时;
(5)冻干结束后进行压塞、复压,制得注射用盐酸氨溴索冻干粉针,规格为每支30mg盐酸氨溴索。
对比实施例3:
处方:
组成 | 重量(g) |
盐酸氨溴索 | 10 |
甘露醇 | 15 |
葡聚糖 | 15 |
聚乙烯醇 | 3 |
1,2-丙二醇 | 3 |
二羟甲基丙酮 | 1 |
制备方法包括以下步骤:
(1)将渗透压调节剂加入注射用水中,制得甘露醇和葡聚糖溶液;加入盐酸氨溴索、稳定剂,得盐酸氨溴索溶液;
(2)将步骤(1)的盐酸氨溴索溶液中加入活性炭,活性炭在盐酸氨溴索溶液中的质量浓度为0.07%,搅拌25min,然后静置18min,然后粗滤脱炭;将粗滤脱炭后的盐酸氨溴索溶液过0.22μm无菌混合纤维素薄膜,制得纯化后的盐酸氨溴索溶液;
(3)将所述盐酸氨溴索溶液温度控制在50-60℃之间;
(4)将所述盐酸氨溴索溶液装于瓶中,半压塞后进行冻干,冻干依次包括步骤:预冻、一次干燥和二次干燥,一次干燥是在真空度12Pa的条件下,在8h之内将温度提高至-5至5℃之间,并在-5至5℃下保温7h;二次干燥是在真空度0-10Pa和4h之内将温度提高至35℃,并在35℃保温7h;所述预冻是在60min内将温度降至-45℃至-35℃之间,并在-45℃至-35℃之间预冻4小时;
(5)冻干结束后进行压塞、复压,制得注射用盐酸氨溴索冻干粉针,规格为每支30mg盐酸氨溴索。
对比实施例4:
处方:
组成 | 重量(g) |
盐酸氨溴索 | 10 |
甘露醇 | 10 |
葡聚糖 | 20 |
乳酸 | 0.5 |
乳酸钠 | 1.5 |
聚乙烯醇 | 2 |
制备方法包括以下步骤:
(1)将渗透压调节剂加入注射用水中,制得甘露醇和葡聚糖溶液;加入盐酸氨溴索、pH缓冲剂、稳定剂聚乙烯醇,得盐酸氨溴索溶液;
(2)将步骤(1)的盐酸氨溴索溶液中加入活性炭,活性炭在盐酸氨溴索溶液中的质量浓度为0.05%,搅拌30min,然后静置15min,然后粗滤脱炭;将粗滤脱炭后的盐酸氨溴索溶液过0.22μm无菌混合纤维素薄膜,制得纯化后的盐酸氨溴索溶液;
(3)将所述盐酸氨溴索溶液温度控制在50-60℃之间,并用pH缓冲剂调节pH值在6-7之间;
(4)将所述盐酸氨溴索溶液装于瓶中,半压塞后进行冻干,冻干依次包括步骤:预冻、一次干燥和二次干燥,一次干燥是在真空度10Pa的条件下,在9h之内将温度提高至-5至5℃之间,并在-5至5℃下保温5h;二次干燥是在真空度0-10Pa和4h之内将温度提高至25℃,并在25℃保温6-9h;所述预冻是在60min内将温度降至-45℃至-35℃之间,并在-45℃至-35℃之间预冻3小时;
(5)冻干结束后进行压塞、复压,制得注射用盐酸氨溴索冻干粉针,规格为每支30mg盐酸氨溴索。
对比实施例5:
处方:
组成 | 重量(g) |
盐酸氨溴索 | 10 |
甘露醇 | 10 |
葡聚糖 | 10 |
乳酸 | 0.5 |
乳酸钠 | 1.5 |
1,2-丙二醇 | 4 |
制备方法包括以下步骤:
(1)将渗透压调节剂加入注射用水中,制得甘露醇和葡聚糖溶液;加入盐酸氨溴索、pH缓冲剂、稳定剂1,2-丙二醇,得盐酸氨溴索溶液;
(2)将步骤(1)的盐酸氨溴索溶液中加入活性炭,活性炭在盐酸氨溴索溶液中的质量浓度为0.1%,搅拌20min,然后静置20min,然后粗滤脱炭;将粗滤脱炭后的盐酸氨溴索溶液过0.22μm无菌混合纤维素薄膜,制得纯化后的盐酸氨溴索溶液;
(3)将所述盐酸氨溴索溶液温度控制在50-60℃之间,并用pH缓冲剂调节pH值在6-7之间;
(4)将所述盐酸氨溴索溶液装于瓶中,半压塞后进行冻干,冻干依次包括步骤:预冻、一次干燥和二次干燥,一次干燥是在真空度15Pa的条件下,在7h之内将温度提高至-5至5℃之间,并在-5至5℃下保温5-8h;二次干燥是在真空度0-10Pa和4h之内将温度提高至45℃,并在45℃保温6-9h;所述预冻是在60min内将温度降至-45℃至-35℃之间,并在-45℃至-35℃之间预冻5小时;
(5)冻干结束后进行压塞、复压,制得注射用盐酸氨溴索冻干粉针,规格为每支30mg盐酸氨溴索。
对比实施例6:
处方:
组成 | 重量(g) |
盐酸氨溴索 | 10 |
甘露醇 | 15 |
葡聚糖 | 15 |
乳酸 | 0.5 |
乳酸钠 | 1.5 |
二羟甲基丙酮 | 1 |
制备方法包括以下步骤:
(1)将渗透压调节剂加入注射用水中,制得甘露醇和葡聚糖溶液;加入盐酸氨溴索、pH缓冲剂、稳定剂二羟甲基丙酮,得盐酸氨溴索溶液;
(2)将步骤(1)的盐酸氨溴索溶液中加入活性炭,活性炭在盐酸氨溴索溶液中的质量浓度为0.07%,搅拌25min,然后静置18min,然后粗滤脱炭;将粗滤脱炭后的盐酸氨溴索溶液过0.22μm无菌混合纤维素薄膜,制得纯化后的盐酸氨溴索溶液;
(3)将所述盐酸氨溴索溶液温度控制在50-60℃之间,并用pH缓冲剂调节pH值在6-7之间;
(4)将所述盐酸氨溴索溶液装于瓶中,半压塞后进行冻干,冻干依次包括步骤:预冻、一次干燥和二次干燥,一次干燥是在真空度12Pa的条件下,在8h之内将温度提高至-5至5℃之间,并在-5至5℃下保温7h;二次干燥是在真空度0-10Pa和4h之内将温度提高至35℃,并在35℃保温7h;所述预冻是在60min内将温度降至-45℃至-35℃之间,并在-45℃至-35℃之间预冻4小时;
(5)冻干结束后进行压塞、复压,制得注射用盐酸氨溴索冻干粉针,规格为每支30mg盐酸氨溴索。
实施例4
注射用盐酸氨溴索冻干粉针剂的外观、含水量、纯度考察试验。
考察指标:产品的外观、含水量、纯度,并将样品置于25℃/RH60%、40℃/RH75%恒温恒湿条件下,分别于0、3、6个月取样检测有关物质,结果见下表。
由以上实验结果可知,从性状看,实施例1-3放置6个月后,不论是25℃还是40℃的情况下,仍然是白色疏松块状物,对比实施例1-6在这两种情况下,部分样品粉末表面局部溶解。从含水量看,实施例1-3放置6个月后,最高为0.02;而对比实施例1-6,最高达到0.02。通过HPLC检测实施例1-3及对比例1-6中注射用盐酸氨溴索冻干粉针剂的纯度,发现是6个月后,25℃情况下,实施例1-3中注射用盐酸氨溴索冻干粉针剂的纯度在98.64-99.24%之间,40℃情况下,实施例1-3中注射用盐酸氨溴索冻干粉针剂的纯度在98.32-99.01%之间,而25℃情况下,对比例1-3的注射用盐酸氨溴索冻干粉针剂的纯度在94.52-96.83%之间,40℃情况下,对比例1-3的注射用盐酸氨溴索冻干粉针剂的纯度在94.27-95.63%之间。分析原因,主要是使用了单独的渗透压调节剂(对比实施例1-2)、单独的稳定剂(对比实施例4-6),或者不使用pH缓冲剂(对比实施例3),都不能起到很好的保护作用,说明单一稳定剂并不能提高注射用盐酸氨溴索冻干粉针剂的纯度。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (9)
1.一种注射用盐酸氨溴索冻干粉针,其特征在于:由盐酸氨溴索、渗透压调节剂、pH缓冲剂、稳定剂组成,其中渗透压调节剂由甘露醇和葡聚糖组成,pH缓冲剂由乳酸和乳酸钠组成,稳定剂由聚乙烯醇、1,2-丙二醇、二羟甲基丙酮组成,其中盐酸氨溴索、渗透压调节剂、pH缓冲剂、稳定剂的重量份比例为:1:2-3:0.2:0.5-1。
2.如权利要求1所述注射用盐酸氨溴索冻干粉针,其特征在于:甘露醇与葡聚糖的重量比为1:1-2。
3.如权利要求1所述注射用盐酸氨溴索冻干粉针,其特征在于:乳酸和乳酸钠的重量比为1:3。
4.如权利要求1所述注射用盐酸氨溴索冻干粉针,其特征在于:聚乙烯醇、1,2-丙二醇、二羟甲基丙酮的重量比为2-5:2-4:1。
5.如权利要求1所述注射用盐酸氨溴索冻干粉针,其特征在于:制备方法包括以下步骤:
(1)将渗透压调节剂加入注射用水中,制得甘露醇和葡聚糖溶液;加入盐酸氨溴索、pH缓冲剂、稳定剂,得盐酸氨溴索溶液;
(2)将步骤(1)的盐酸氨溴索溶液中加入活性炭,搅拌静置,然后粗滤脱炭;将粗滤脱炭后的盐酸氨溴索溶液过0.22μm无菌混合纤维素薄膜,制得纯化后的盐酸氨溴索溶液;
(3)将所述盐酸氨溴索溶液温度控制在50-60℃之间,并用pH缓冲剂调节pH值在6-7之间;
(4)将所述盐酸氨溴索溶液装于瓶中,半压塞后进行冻干,冻干依次包括步骤:预冻、一次干燥和二次干燥,所述预冻是在60min内将温度降至-45℃至-35℃之间,并在-45℃至-35℃之间预冻3-5小时;
(5)冻干结束后进行压塞、复压,制得注射用盐酸氨溴索冻干粉针。
6.如权利要求5所述注射用盐酸氨溴索冻干粉针,其特征在于:制备方法步骤(2)中所述活性炭在盐酸氨溴索溶液中的质量浓度为0.05-0.1%。
7.如权利要求5所述注射用盐酸氨溴索冻干粉针,其特征在于:制备方法所述步骤(2)中的搅拌静置是搅拌20-30min,然后静置15-20min。
8.如权利要求1所述注射用盐酸氨溴索冻干粉针,其特征在于:制备方法中所述一次干燥是在真空度10-15Pa的条件下,在7-9h之内将温度提高至-5至5℃之间,并在-5至5℃下保温5-8h。
9.如权利要求1所述注射用盐酸氨溴索冻干粉针,其特征在于:制备方法中所述二次干燥是在真空度0-10Pa和3-4h之内将温度提高至25-45℃,并在25-45℃保温6-9h。
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