CN112754990A - 一种糠酸莫米松乳膏及其制备方法 - Google Patents
一种糠酸莫米松乳膏及其制备方法 Download PDFInfo
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- CN112754990A CN112754990A CN202110301951.2A CN202110301951A CN112754990A CN 112754990 A CN112754990 A CN 112754990A CN 202110301951 A CN202110301951 A CN 202110301951A CN 112754990 A CN112754990 A CN 112754990A
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- mometasone furoate
- emulsifier
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/06—Ointments; Bases therefor; Other semi-solid forms, e.g. creams, sticks, gels
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/02—Inorganic compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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Abstract
本发明公开了一种糠酸莫米松乳膏及其制备方法,属于外用药物制剂技术领域。该糠酸莫米松乳膏按照重量份包括以下成分:糠酸莫米松0.5‑2份、酸0.2‑0.4份、油相调节剂75‑150份、稠度调节剂30‑50份、保湿剂60‑100份、助乳化剂80‑120份、助溶剂60‑90份、增白剂1‑3份、乳化剂30‑50份、防腐剂0.3‑1份、水495‑605份。本发明的制备方法工艺先进、方法简单易操作,制得的糠酸莫米松乳膏杂质含量降低,收率高,稳定性好。
Description
技术领域
本发明属于外用药物制剂技术领域,具体涉及一种糠酸莫米松乳膏及其制备方法。
背景技术
局部用皮质甾类具有抗炎、止痒和血管收缩作用,用于缓解牛皮癣、特应性皮炎(特应性湿疹)、其他皮肤病引起的发红、皮肤水肿(肿胀)、搔痒、皮肤变硬、剥落、起泡、裂开、渗出和不舒适感,其中,其他皮肤病包括接触性皮炎、脂溢性皮炎、干性湿疹、盘状湿疹、静脉性湿疹、疱疹样皮炎、神经性皮炎、自体湿疹化等。糠酸莫米松是一种皮质甾类,是人工合成的糖皮质激素药,糠酸莫米松乳膏有减轻炎症和瘙痒的作用,适用于对糖皮质激素有效的皮肤病,具有疗效强、肾上皮质功能抑制低的特点。
中国专利申请201510154569.8公开了一种糠酸莫米松乳膏,其由下述组分组成:物料重量比糠酸莫米松0.02-2%、白凡士林50-80%、单、双硬脂酸甘油酯3-20%、司盘803-20%、吐温80 1-5%、二氧化钛1-5%、无水枸橼酸0.02-3%、丙二醇5-15%、水5-10%。通过下列步骤制备:1)白凡士林,单、双硬脂酸甘油酯,司盘80,二氧化钛60~75℃加热熔融同时搅拌混合均匀,得油相;2)吐温80、无水枸橼酸混合均匀,加入糠酸莫米松加热至35-50℃并混合均匀;3)丙二醇与水混合加热至60-75℃,将步骤2)制备所得的混合物中加入丙二醇水溶液中,60-75℃搅拌混合均匀,得水相;4)水相缓慢加入油相中,乳化均质,加完水相,继续均质使均匀,均质结束后继续搅拌中通冷却水缓慢冷却。
中国专利申请201710341628.1公开了一种降低糠酸莫米松临床治疗银屑病复发副作用的药物,属于药物技术领域。该药物包括组份A、组份B、乳化剂和辅料,所述组份A为糠酸莫米松,所述组份B为生物制剂,复合乳化剂为吐温80和司盘60、辅料为硬脂酸、甘油、白凡士林、尿囊素等。临床试验证明,该药物可以显著的降低了糠酸莫米松临床治疗银屑病复发的副作用,而且提高了疗效。
中国专利申请201610454122.7公开了一种由活性成分、药物辅料组成的直接作用于皮肤的药物组合物,其特征为活性成分含有糠酸莫米松和薁磺酸或其盐中的一种。所述的药物组合物的适用于皮肤的辅料包括pH调节剂、抗菌防腐剂、抗氧化剂、助溶剂、渗透压调节剂、粘度调节剂、表面活性剂、流变调节剂、油相成分、保湿剂、稳定剂、水中的一种或几种。
但现有处方和工艺制备的糠酸莫米松乳膏杂质含量较高,且在生产过程中得率很低,造成极大的浪费。有鉴于此,本申请提供一种糠酸莫米松乳膏及其制备方法,重点解决现有技术中杂质含量高,收得率低的问题。
发明内容
本发明的目的是提供一种糠酸莫米松乳膏及其制备方法,制得的糠酸莫米松乳膏杂质含量降低,收得率提高,具有工艺先进、方法简单、收益率高的优点。
为实现上述发明目的,本发明技术方案如下:
一方面,本发明提供一种糠酸莫米松乳膏,按照重量份包括以下成分:糠酸莫米松0.5-2份、酸0.2-0.4份、油相调节剂75-150份、稠度调节剂30-50份、保湿剂60-100份、助乳化剂80-120份、助溶剂60-90份、增白剂1-3份、乳化剂30-50份、防腐剂0.3-1份、水495-605份。
优选的,所述酸为多元无机酸。
其中,糠酸莫米松、多元无机酸和助乳化剂的重量比为0.8-1.8:0.25-0.35:90-110,进一步优选为1:0.27:100。
本申请人意外发现,加入多元无机酸,并选择一定配比,可以很好的控制乳膏制备过程中杂质的析出。
优选的,所述糠酸莫米松乳膏,按照重量份包括以下成分:糠酸莫米松0.8-1.8份、酸0.25-0.35份、油相调节剂75-100份、稠度调节剂35-45份、保湿剂70-90份、助乳化剂90-110份、助溶剂70-80份、增白剂1.5-2.5份、乳化剂35-45份、防腐剂0.4-0.8份、水540-575份。
进一步优选的,所述糠酸莫米松乳膏,按照重量份包括以下成分:糠酸莫米松1份、酸0.27份、油相调节剂100份、稠度调节剂40份、保湿剂80份、助乳化剂100份、助溶剂70份、增白剂2份、乳化剂40份、防腐剂0.5份、水566.23份。
优选的,所述多元无机酸选自磷酸、硼酸、盐酸、碳酸、硝酸、硫酸、硅酸、枸橼酸、苹果酸、水杨酸、酒石酸中的至少一种,进一步优选为磷酸。
优选的,所述油相调节剂选自十六十八醇、十八醇、白蜡、白凡士林、蜂蜡中的至少一种,进一步优选为十六十八醇。
优选的,所述选自甘油、白凡士林丙二醇、丁二醇、山梨醇、己二醇、聚乙二醇、聚丙二醇、山梨糖醇、木糖醇、透明质酸、聚谷氨酸中的至少一种,进一步优选为甘油。
优选的,所述助乳化剂为单双硬脂酸甘油酯和/或单硬脂酸甘油酯,进一步优选为单双硬脂酸甘油酯。
优选的,所述乳化剂选自聚山梨酯20、聚山梨酯60、聚山梨酯80、十二烷基硫酸钠中的至少一种。
优选的,所述稠度调节剂选自轻质液体石蜡、液状石蜡、石蜡、单双硬脂酸甘油酯、白凡士林、十六十八醇、聚乙二醇中的至少一种,进一步优选为轻质液体石蜡。
优选的,所述防腐剂选自羟苯乙酯、羟苯甲酯、羟苯丙酯、水杨酸甲酯、尼泊金乙酯中的至少一种,进一步优选为羟苯乙酯。
优选的,所述助溶剂为含70-100%有机醇的水溶液,所述有机醇为乙醇、丙醇、丁醇中的至少一种。
优选的,所述增白剂为二氧化钛。
另一方面,本发明还提供上述糠酸莫米松乳膏的制备方法,包括以下步骤:
(1)配置油相:将配方用量的油相调节剂、稠度调节剂、助乳化剂混合,完全溶解后得油相;
(2)配置水相:将配方用量的水、保湿剂,及不少于配方用量一半的乳化剂混合,完全溶解后得水相;
(3)配制主药溶液:取配方用量的防腐剂、糠酸莫米松和剩余的乳化剂混合,初步混合分散,加入助溶剂,完全溶解后得主药溶液;
(4)配制酸溶液:将配方用量的酸与水混合,制备成质量分数0.5-2.0%的酸溶液;
(5)将步骤(1)-(4)所得油相、水相、主药溶液、酸溶液混合,乳化,即得所述糠酸莫米松乳膏。
步骤(1)-(4)无先后顺序。
优选的,步骤(1)具体为:将配方用量的油相调节剂、稠度调节剂、助乳化剂混合,并在80-100℃下搅拌,至完全混合溶解,得油相,保温备用;
进一步优选的,搅拌过程采用加热罐,以夹层蒸汽加热方式进行加热。
优选的,步骤(2)具体为:将配方用量的水、保湿剂,及不少于配方用量一半的乳化剂混合,并在80-100℃下搅拌,至完全混合溶解,得水相,保温备用;
进一步优选的,搅拌过程采用加热罐,以夹层蒸汽加热方式进行加热。
优选的,步骤(5)具体为:
a、水相与增白剂混合并搅拌均匀,80-90℃保温备用。
b、将油相与步骤a所的混合物混合,在1800-2600rpm下均质5-15分钟,同时在60-100rpm下慢速搅拌5-15分钟,制成乳剂型基质,降温至50℃-55℃,保温备用;
c、将酸溶液与步骤b所得混合物混合,在1800-2600rpm下均质5-15分钟,同时在60-100rpm下慢速搅拌5-15分钟,50℃-55℃保温;
d、将主药溶液与步骤c所得混合物混合,在1800-2600rpm下均质5-15分钟,同时在60-100rpm下慢速搅拌15-35分钟,冷却至50℃以下搅拌出膏。
进一步优选的,步骤(5)所述混合乳化在真空条件下进行。
进一步优选的,步骤b、c、d中所述均质的速度均为2000rpm。
本发明的有益效果为:
(1)本发明的制备方法工艺先进、方法简单易操作;
(2)本发明制得的糠酸莫米松乳膏杂质含量降低,收率高,稳定性好。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体实施例,进一步阐明本发明,但下述实施例仅为本发明的优选实施例,并非全部。基于实施方式中的实施例,本领域技术人员在没有做出创造性劳动的前提下所获得其它实施例,都属于本发明的保护范围。下述实施例中,若无特殊说明,所用的操作方法均为常规操作方法,所用设备均为常规设备,所用原料均为市售,不对本申请做限定作用。
下述原料中:十六十八醇购自湖南尔康制药股份有限公司;
糠酸莫米松购自上海新华联制药有限公司;
轻质液体石蜡购自天津红山新材料科技有限公司;
磷酸购自广东光华科技股份有限公司;
单双硬脂酸甘油酯购自杭州油脂化工有限公司;
聚山梨酯80购自南京威尔药业股份有限公司;
羟苯乙酯购自广州市汉普医药有限公司;
乙醇购自中山市华士达生物科技有限公司;
二氧化钛购自宁波一品生物技术有限公司;
甘油购自丰益油脂科技(上海)有限公司。
实施例1-5
其中,实施例1-5的配方如表1所示:
表1.
实施例1-5均按照以下步骤进行制备:
步骤1,油相的配制:按重量称取十六十八醇、轻质液状石蜡、单双硬脂酸甘油酯置于油相加热罐中,开启夹层蒸汽加热至85℃,搅拌溶解,85℃保温备用;
步骤2,水相的配制:按重量称取纯化水、甘油、处方量二分之一的聚山梨酯80置于水相加热罐中,开启夹层蒸汽加热至85℃,搅拌均匀,85℃保温备用;
步骤3,磷酸溶液的配制:按重量称取磷酸,加纯化水制成1.0%的磷酸溶液,备用;
步骤4,主药溶液的配制:取剩余部分的聚山梨酯80于移动配制罐中,加入处方量的羟苯乙酯,糠酸莫米松,初步混合分散,再加入95%乙醇,400rpm搅拌至溶解;
步骤5,混合乳化:
a将水相抽入真空乳化机,加入二氧化钛,搅拌使其分散均匀,85℃保温备用;
b将油相抽入真空乳化机中,启动均质器(2000rpm,10分钟),同时慢速搅拌(80rpm,10分钟)制成乳剂型基质,搅拌降温至50℃-55℃,保温;
c将1.0%磷酸溶液抽入真空乳化机中,启动均质器(2000rpm,5分钟),同时慢速搅拌(80rpm,5分钟),50℃-55℃保温;
d将主药溶液抽入真空乳化机中,搅拌均匀,启动均质器(2000rpm,5分钟),同时慢速搅拌(80rpm,25分钟),冷却至50℃以下搅拌出膏。
实施例6
与实施例1不同的是,步骤5具体为:
a将水相抽入真空乳化机,加入二氧化钛,搅拌使其分散均匀,85℃保温备用;
b将油相抽入真空乳化机中,启动均质器(2550rpm,10分钟),同时慢速搅拌(80rpm,10分钟)制成乳剂型基质,降温至50℃-55℃,保温;
c将1.0%磷酸溶液抽入真空乳化机中,启动均质器(2550rpm,5分钟),同时慢速搅拌(80rpm,5分钟),50℃-55℃保温;
d将主药溶液抽入真空乳化机中,搅拌均匀,启动均质器(2550rpm,5分钟),同时慢速搅拌(80rpm,10分钟),冷却至50℃以下搅拌出膏。
实验中发现,该均质速度下,膏体粘稠,没流动性,难灌装,导致收率有一定程度降低,而均质速度为1800-2300rpm,尤其是2000rpm时,粒度明显降低,膏体色泽光润,流动性变好,灌装顺利。
对比例1
与实施例1不同的是,配方中未添加磷酸,用水补足至1000份,其余皆相同。
对比例2
与实施例1不同的是,用相同用量的磷酸氢二钠替代磷酸,其余皆相同。
对比例3
与实施例1不同的是,用相同用量的无水枸橼酸替代磷酸,其余皆相同。
对比例4
对比例4配方为:
糠酸莫米松15份、十六-十八醇45份、单硬质酸甘油酯7.5份、蜂蜡5份、三乙醇胺8份、轻质液体石蜡35份、十二烷基硫酸钠2份,月桂醇硫酸钠8份、丙二醇25份、羟基乙脂1份、吐温-802份、加余量的纯化水至总重量为500份。
制备方法为:
(1)制备油相:称取配方量的十六十八醇、单硬脂酸甘油酯、蜂蜡、轻质液体石蜡、羟苯乙酯混合加热使熔融,至80-85℃保温半小时后,过150目筛,备用;
(2)制备水相:称取处方量所需的纯化水加热至80℃左右时,加入十二烷基硫酸钠、月桂醇硫酸钠与吐温-80搅拌使溶解,过150目筛,至80-85℃保温半小时,备用;
(3)将糠酸莫米松与丙二醇、三乙醇胺混合,搅拌,使混匀,过150目筛,备用;
(4)当油水相温度均在75-80℃时,将水相缓缓倒入油相内,搅拌至50-55℃时,将糠酸莫米松与少量水、丙二醇与三乙醇胺混合溶液,缓缓加到正在乳化的乳化液中,继续搅拌冷却至膏体成形。
对比例5
对比例5配方为:
糠酸莫米松0.5份、白凡士林720份、单双硬脂酸甘油酯40份、司盘80 60份、二氧化钛15份、吐温80 15份、无水枸橼酸9.5份、丙二醇80份、水60份。
制备方法为:
(1)按处方量称取白凡士林,单双硬脂酸甘油酯,司盘80及二氧化钛,于60℃加热熔融同时搅拌混合均匀,得油相;
(2)按处方量称取吐温80和无水枸橼酸混合均匀,加入糠酸莫米松加热至35℃并混合均匀;
(3)按处方量称取丙二醇与水,混合加热至60℃,将步骤2)制备所得的混合物中加入丙二醇水溶液中,60℃搅拌混合均匀,得水相;
(4)水相缓慢加入油相中,乳化均质,加完水相,继续均质使均匀,均质结束后继续搅拌中通冷却水缓慢冷却。
对比例6
与实施例不同的是,对比例6配方如下:
表2.
重量份 | 实施例1 |
糠酸莫米松 | 0.5 |
磷酸 | 0.4 |
十六十八醇 | 100 |
轻质液体石蜡 | 40 |
甘油 | 80 |
单双硬脂酸甘油酯 | 100 |
95%乙醇 | 90 |
二氧化钛 | 2 |
聚山梨酯80 | 40 |
羟苯乙酯 | 0.5 |
纯化水 | 546.6 |
结果检测
检测方法:
粒度检测:参考《中国药典》粒度和粒度分布测定法:取样品适量,加入适量甘油稀释(1:10),滴加1滴亚甲蓝指示液,缓慢搅拌,直至混合均匀,取样品置于载玻片上,涂成薄层,薄层面积相当于盖玻片面积,在50-400倍显微镜下检视盖玻片全部视野,应无凝聚现象,并计算液滴粒径或晶体分布情况。
杂质总量检测:照《中国药典》高效液相色谱法测定。
粘度检测:取样品适量,至250ml烧杯中,照(《中国药典》黏度测定法第三法)测定。
检测结果:
表3.
杂质含量 | 收得率 | 粒度/占比% | 粘度(mPa.s) | |
实施例1 | 未检出 | 96.4% | 0-10μm/88% | 28500 |
实施例2 | 未检出 | 93.5% | 0-10μm/94% | 23000 |
实施例3 | 未检出 | 92.6% | 0-10μm/89% | 25000 |
实施例4 | 未检出 | 92.3% | 0-10μm/93% | 21000 |
实施例5 | 未检出 | 93.2% | 0-10μm/91% | 22500 |
实施例6 | 未检出 | 76.5% | 0-10μm/100% | 106000 |
对比例1 | 0.36% | 89.0% | 0-10μm/94% | 21500 |
对比例2 | 0.38% | 95.9% | 0-10μm/89% | 55000 |
对比例3 | 0.24% | 95.0% | 0-10μm/87% | 58000 |
对比例4 | 0.29% | 96.4% | 0-10μm/95% | 25500 |
对比例5 | 2.18% | 94.8% | 0-10μm/96% | 13500 |
对比例6 | 0.88% | 95.1% | 0-10μm/87% | 16500 |
温度破坏试验
测试样品:实施例1和对比例1
检测方法:同杂质总量检测
正常条件:同杂质总量检测方法制备供试品溶液。
加速试验供试品溶液的制备:取本品适量,相当于2.0mg糠酸莫米松,精密称定,置50ml量瓶中,水浴控温,在60℃,放置5小时,放冷,精密加入乙腈20ml,置60℃水浴加热融化,强力振摇2min,摇匀,置冰浴冷却10min,迅速离心(3500转,5分钟),滤过,上清液放至室温作为供试品溶液。
检测结果:
表4.
杂质含量 | 杂质含量 | |
加速条件 | 无 | 60℃,5h |
实施例1 | 未检出 | 0.05% |
对比例1 | 0.36% | 3.6% |
可以看出,添加磷酸后,放置5小时样品更加稳定。
上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (10)
1.一种糠酸莫米松乳膏,其特征在于,按照重量份包括以下成分:糠酸莫米松0.5-2份、酸0.2-0.4份、油相调节剂75-150份、稠度调节剂30-50份、保湿剂60-100份、助乳化剂80-120份、助溶剂60-90份、增白剂1-3份、乳化剂30-50份、防腐剂0.3-1份、水495-605份。
2.根据权利要求1所述的糠酸莫米松乳膏,其特征在于,所述酸为多元无机酸。
3.根据权利要求2所述的糠酸莫米松乳膏,其特征在于,糠酸莫米松、多元无机酸和助乳化剂的重量比为0.8-1.8:0.25-0.35:90-110,优选为1:0.27:100。
4.根据权利要求1所述的糠酸莫米松乳膏,其特征在于,按照重量份包括以下成分:糠酸莫米松0.8-1.8份、酸0.25-0.35份、油相调节剂75-100份、稠度调节剂35-45份、保湿剂70-90份、助乳化剂90-110份、助溶剂70-80份、增白剂1.5-2.5份、乳化剂35-45份、防腐剂0.4-0.8份、水540-575份。
5.根据权利要求4所述的糠酸莫米松乳膏,其特征在于,按照重量份包括以下成分:糠酸莫米松1份、酸0.27份、油相调节剂100份、稠度调节剂40份、保湿剂80份、助乳化剂100份、助溶剂70份、增白剂2份、乳化剂40份、防腐剂0.5份、水566.23份。
6.根据权利要求1所述的糠酸莫米松乳膏,其特征在于,所述酸选自磷酸、硼酸、盐酸、碳酸、硝酸、硫酸、硅酸、枸橼酸、苹果酸、水杨酸、酒石酸中的至少一种;所述油相调节剂选自十六十八醇、十八醇、白蜡、白凡士林、蜂蜡中的至少一种;所述保湿剂选自甘油、白凡士林、丙二醇、丁二醇、山梨醇、己二醇、聚乙二醇、聚丙二醇、山梨糖醇、木糖醇、透明质酸、聚谷氨酸中的至少一种;所述助乳化剂为单双硬脂酸甘油酯和/或单硬脂酸甘油酯;所述乳化剂选自聚山梨酯20、聚山梨酯60、聚山梨酯80、十二烷基硫酸钠中的至少一种;所述稠度调节剂选自轻质液体石蜡、液状石蜡、石蜡、单双硬脂酸甘油酯、白凡士林、十六十八醇、聚乙二醇中的至少一种;所述防腐剂选自羟苯乙酯、羟苯甲酯、羟苯丙酯、水杨酸甲酯、尼泊金乙酯中的至少一种;所述助溶剂为含70-100%有机醇的溶液,所述有机醇选自乙醇、丙醇、丁醇中的至少一种;所述增白剂为二氧化钛。
7.根据权利要求6所述的糠酸莫米松乳膏,其特征在于所述酸为磷酸,所述油相调节剂为十六十八醇,所述保湿剂为甘油,所述助乳化剂为单双硬脂酸甘油酯,所述乳化剂为聚山梨酯80,所述稠度调节剂为轻质液体石蜡,所述防腐剂为羟苯乙酯,所述助溶剂为95%乙醇,所述增白剂为二氧化钛。
8.权利要求1-7任一项所述糠酸莫米松乳膏的制备方法,其特征在于,包括以下步骤:
(1)配置油相:将配方用量的油相调节剂、稠度调节剂、助乳化剂混合,完全溶解后得油相;
(2)配置水相:将配方用量的水、保湿剂,及不少于配方用量一半的乳化剂混合,完全溶解后得水相;
(3)配制主药溶液:取配方用量的防腐剂、糠酸莫米松和剩余的乳化剂混合,初步混合分散,加入助溶剂,完全溶解后得主药溶液;
(4)配制酸溶液:将配方用量的酸与水混合,制备成质量分数0.5-2.0%的酸溶液;
(5)将步骤(1)-(4)所得油相、水相、主药溶液、酸溶液以及配方用量的增白剂混合,乳化,即得所述糠酸莫米松乳膏。
9.根据权利要求8所述的制备方法,其特征在于,步骤(1)具体为:将配方用量的油相调节剂、稠度调节剂、助乳化剂混合,并在80-100℃下搅拌,至完全混合溶解,得油相,保温备用;搅拌过程采用加热罐,以夹层蒸汽加热方式进行加热;
步骤(2)具体为:将配方用量的水、保湿剂,及不少于配方用量一半的乳化剂混合,并在80-100℃下搅拌,至完全混合溶解,得水相,保温备用;搅拌过程采用加热罐,以夹层蒸汽加热方式进行加热;
步骤(5)具体为:
a、水相与增白剂混合并搅拌均匀,80-90℃保温备用;
b、将油相与步骤a所得混合物混合,在1800-2600rpm下均质5-15分钟,同时在60-100rpm下慢速搅拌5-15分钟,制成乳剂型基质,降温至50℃-55℃,保温备用;
c、将酸溶液与步骤b所得混合物混合,在1800-2600rpm下均质5-15分钟,同时在在60-100rpm下慢速搅拌5-15分钟,50℃-55℃保温;
d、将主药溶液与步骤c所得混合物混合,在1800-2600rpm下均质5-15分钟,同时在60-100rpm下慢速搅拌15-35分钟,冷却至50℃以下搅拌出膏。
10.根据权利要求9所述的制备方法,其特征在于,步骤b、c、d中所述均质的速度均为2000rpm。
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