CN105853443B - 一种醋酸曲安奈德尿素软膏及其制备方法 - Google Patents

一种醋酸曲安奈德尿素软膏及其制备方法 Download PDF

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CN105853443B
CN105853443B CN201610201094.8A CN201610201094A CN105853443B CN 105853443 B CN105853443 B CN 105853443B CN 201610201094 A CN201610201094 A CN 201610201094A CN 105853443 B CN105853443 B CN 105853443B
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吴灿灿
裴义海
利潇潇
骆后峰
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Sinopharm Group Sanyi Pharmaceutical Wuhu Co Ltd
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Abstract

本发明公开了一种醋酸曲安奈德尿素软膏及其制备方法,所述的软膏由醋酸曲安奈德、尿素、亲水性基质组成,所述的亲水性基质包括膏体、稳定剂。本发明与现有技术相比,利用稳定剂的综合作用,增强了醋酸曲安奈德的稳定性,使醋酸曲安奈德尿素软膏在2年内,含量都不下降,保持稳定。

Description

一种醋酸曲安奈德尿素软膏及其制备方法
技术领域
本发明属于软膏剂及其制备方法,特别属于醋酸曲安奈德尿素软膏及其制备方法。
背景技术
醋酸曲安奈德尿素软膏为卫生部部版标准收载品种,原名称曲安缩松-尿素软膏,软膏包括醋酸曲安奈德、尿素、亲水性基质。其规格为:每10g含醋酸曲安奈德10mg,尿素1.0g。
由于醋酸曲安奈德尿素软膏的有效期是2年,而醋酸曲安奈德为肾上腺素皮质激素类药物,其在通常的亲水性基质中不稳定,容易降解,通常1-1.5年,其标示量就小于90%,达不到部版标准的要求。
发明内容
本发明所要解决的第1个技术问题是提供一种稳定性好的醋酸曲安奈德尿素软膏。
本发明所要解决的第2个技术问题是上述软膏的制备方法。
本发明解决技术问题的技术方案为:一种醋酸曲安奈德尿素软膏,由醋酸曲安奈德、尿素、亲水性基质组成,所述的亲水性基质包括膏体、稳定剂,所述的稳定剂为硫脲、依地酸二钠、枸橼酸、2,6-二叔丁基对甲酚的混合物。
所述的醋酸曲安奈德、硫脲、依地酸二钠、枸橼酸、2,6-二叔丁基对甲酚的重量比为1:0.5-1.5:0.5-1.5:0.5-1.5:0.5-1.5。
所述的膏体包括硬脂酸、单双硬脂酸甘油酯、三乙醇胺、二甲基亚砜、白凡士林、轻质液体石蜡、甘油,抑菌剂、纯化水。
所述的抑菌剂为尼泊尔乙酯(羟苯乙酯)。
一种醋酸曲安奈德尿素软膏的制备方法,包括以下步骤:
1、油相成份:将称量好的单双硬脂酸甘油脂、硬脂酸投入油相预处理锅,后通过负压将白凡士林、轻质液状石蜡抽入加热搅拌熔化,并于110℃恒温20分钟,降温至80℃保温;
2、水相成份:通过纯化水管道向水相预处理锅放部分纯化水、负压抽入甘油,三乙醇胺于水相预处理锅,加热搅拌溶解并于100℃恒温20分钟处理,再降温至60℃,加入尿素;
3、主药成份:将二甲基亚砜加入醋酸曲安奈德中,搅拌溶解;
4、稳定剂、抑菌剂成份:将稳定剂、抑菌剂于另一容器中,加入剩余的纯化水,搅拌溶解;
5、先将油相成份,经滤网真空吸入均质锅中,待油相成份吸完后,开启搅拌,吸入水相成份,加热搅拌至70~75℃,再冷却至55~65℃,搅拌10分钟,再加入主药成份,稳定剂、抑菌剂成份,搅拌降温至30~40℃,均质速度2500转/分钟,均质10分钟,即可。
本发明与现有技术相比,利用稳定剂的综合作用,增强了醋酸曲安奈德的稳定性,使醋酸曲安奈德尿素软膏在2年内,其含量都不下降,保持稳定。
具体实施方式
下面结合实施例对本发明作详细的说明。
本发明的醋酸曲安奈德、硫脲、依地酸二钠、枸橼酸、2,6-二叔丁基对甲酚、硬脂酸、单双硬脂酸甘油酯、三乙醇胺、二甲基亚砜、白凡士林、轻质液体石蜡、甘油,抑菌剂、纯化水均符合相应的药用标准。
实施例1:
配方:
制备过程:
1、油相成份:将称量好的单双硬脂酸甘油脂、硬脂酸投入油相预处理锅,后通过负压将白凡士林、轻质液状石蜡抽入加热搅拌熔化,并于110℃恒温20分钟,降温至80℃保温;
2、水相成份:通过纯化水管道向水相预处理锅放纯化水421.4kg、负压抽入甘油,三乙醇胺于水相预处理锅,加热搅拌溶解并于100℃恒温20分钟处理,再降温至60℃,加入尿素;
3、主药成份:将二甲基亚砜加入醋酸曲安奈德中,搅拌溶解;
4、稳定剂、抑菌剂成份:将羟苯乙酯、硫脲、2,6-二叔丁基对甲酚、枸橼酸、依地酸二钠于另一容器中,加入剩余的纯化水,搅拌溶解;
5、先将处理好的油相成份,经滤网真空吸入均质锅中,待油相成份吸完后,开启搅拌,吸入水相成份,加热搅拌至70~75℃,再冷却至55~65℃,搅拌10分钟,再加入主药成份,稳定剂、抑菌剂成份,搅拌降温至30~40℃,均质速度2500转/分钟,均质10分钟,即可。
实施例2:
除硫脲、2,6-二叔丁基对甲酚、枸橼酸、依地酸二钠均为0.35kg,其余与实施例1相同。
实施例3:
除硫脲、2,6-二叔丁基对甲酚、枸橼酸、依地酸二钠均为1.05kg,其余与实施例1相同。
实施例4:
除不加硫脲、2,6-二叔丁基对甲酚外,其余与实施例1相同。
实施例5:
除不加硫脲、依地酸二钠外,其余与实施例1相同。
实施例6:
除不加2,6-二叔丁基对甲酚外,其余与实施例1相同。
实施例7:
除不加硫脲、2,6-二叔丁基对甲酚、枸橼酸、依地酸二钠外,其余与实施例1相同
将实施例1-7按照《中国药典》2010版附录中药品稳定性试验的要求进行稳定性考察,其检测方法按照卫生部标准(WS1-282(D-41)-88)进行检测。其结果如表1所示:
表1中的含量均为醋酸曲安奈德的标示量(%)。
0月 6月 12月 18月 24月
实施例1 99.6 99.2 99.5 98.5 98.2
实施例2 99.8 99.8 99.4 98.7 98.9
实施例3 99.7 99.5 99.0 98.2 98.5
实施例4 99.6 96.5 95.3 88.5 84.5
实施例5 99.5 94.3 91.5 86.5 80.2
实施例6 99.4 95.6 90.3 84.3 78.6
实施例7 99.8 93.6 88.5 82.2 75.5

Claims (3)

1.一种醋酸曲安奈德尿素软膏,由醋酸曲安奈德、尿素、亲水性基质组成,其特征在于:所述的亲水性基质包括膏体、稳定剂;
所述的稳定剂为硫脲、依地酸二钠、枸橼酸、2,6-二叔丁基对甲酚的混合物;
所述的膏体包括硬脂酸、单双硬脂酸甘油酯、三乙醇胺、二甲基亚砜、白凡士林、轻质液体石蜡、甘油,抑菌剂、纯化水;
所述的醋酸曲安奈德、硫脲、依地酸二钠、枸橼酸、2,6-二叔丁基对甲酚的重量比为1:0.5-1.5:0.5-1.5:0.5-1.5:0.5-1.5;
所述的硫脲、依地酸二钠、枸橼酸、2,6-二叔丁基对甲酚的重量比为1:1:1:1。
2.根据权利要求1所述的一种醋酸曲安奈德尿素软膏,其特征在于:所述的抑菌剂为尼泊尔乙酯。
3.权利要求1所述的一种醋酸曲安奈德尿素软膏的制备方法,包括以下步骤:
1)油相成份:将称量好的单双硬脂酸甘油脂、硬脂酸投入油相预处理锅,后通过负压将白凡士林、轻质液状石蜡抽入加热搅拌熔化,并于110℃恒温20分钟,降温至80℃保温;
2)水相成份:通过纯化水管道向水相预处理锅放部分纯化水、负压抽入甘油,三乙醇胺于水相预处理锅,加热搅拌溶解并于100℃恒温20分钟处理,再降温至60℃,加入尿素;
3)主药成份:将二甲基亚砜加入醋酸曲安奈德中,搅拌溶解;
4)稳定剂、抑菌剂成份:将稳定剂、抑菌剂于另一容器中,加入剩余的纯化水,搅拌溶解;
5)先将油相成份,经滤网真空吸入均质锅中,待油相成份吸完后,开启搅拌,吸入水相成份,加热搅拌至70~75℃,再冷却至55~65℃,搅拌10分钟,再加入主药成份,稳定剂、抑菌剂成份,搅拌降温至30~40℃,均质速度2500转/分钟,均质10分钟,即可。
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