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