CN109589303A - 一种氢化可的松环糊精包合物软膏的制备方法 - Google Patents

一种氢化可的松环糊精包合物软膏的制备方法 Download PDF

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CN109589303A
CN109589303A CN201910123638.7A CN201910123638A CN109589303A CN 109589303 A CN109589303 A CN 109589303A CN 201910123638 A CN201910123638 A CN 201910123638A CN 109589303 A CN109589303 A CN 109589303A
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hydrocortisone
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张国光
邓春梅
康信煌
何兰珍
吴育廉
方少杏
荆梦瑶
黄国威
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Abstract

本发明涉及一种氢化可的松环糊精包合物软膏的制备方法,属于药物制备技术领域;该制备方法是将一定比例的氢化可的松和环糊精,用95%乙醇和蒸馏水溶解,超声得到包合物;单硬脂酸甘油酯、硬脂酸、白凡士林、羊毛脂、液体石蜡,加热融化,保温作为油相;甘油、尼泊金乙酯,三乙醇胺、蒸馏水,加热溶解,加入油相,搅拌均匀至冷凝得到软膏基质,取包合物和软膏基质,水浴下搅拌均匀即得;采用该方法制备的氢化可的松环糊精包合物软膏,具有吸收透过性好、安全可靠和稳定高效,对环境污染小,使用过程中无毒副作用;生产成本低,设备操作简单,可实现工业规模化生产。

Description

一种氢化可的松环糊精包合物软膏的制备方法
技术领域
本发明涉及一种包合物软膏制备方法,具体涉及一种氢化可的松环糊精包合物软膏的制备方法,属于药物制备技术领域。
背景技术
氢化可的松是人工合成也是天然存在的糖皮质激素,具有抗炎、抗病毒、抗休克、免疫抑制等多种药理作用,临床上用来控制严重中毒性感染和风湿病等,但其脂溶性高,极微溶于水,其水溶性差和生物利用度低大大限制了其临床效果。目前有超过40%的药物为水难溶性药物,其在水中的溶解度小,难以被人体吸收,生物利用度较低,因此,如何解决这类药物水溶性的问题受到了研究者们的关注。通过采用高新技术手段,制备药物纳米颗粒或将其制成固体分散体、包合物和微胶囊等新剂型,从而有效地提高药物的溶出度和生物利用度,具有重要的研究价值和应用意义。
羟丙基-β-环糊精是β-环糊精的羟烷基化衍生物,是目前研究最多、对药物增溶性和提高稳定性效果较好的环糊精衍生物,羟丙基的引入打破了β-环糊精的分子内环状氢键,在保持环糊精空腔的同时克服了β-环糊精水溶性差的主要缺点。
Zhang等人通过以β-环糊精和γ-环糊精包合黄颜木素制备包合物,其水溶性实验结果表明:黄颜木素在乙醇溶液中的溶解度为2.8mg/mL,而黄颜木素-β-环糊精包合物的溶解度为4.5mg/mL,黄颜木素-γ-环糊精包合物的溶解度为7.8mg/mL,溶解度均有了很大的提升。
Baboota等人采用研磨法成功制备了罗非昔布-羟丙基-β-环糊精包合物,以此来提高其溶解速率。体外溶出研究结果表明:在pH=1.2的模拟胃液环境中,5min时罗非昔布、市售制剂、罗非昔布、羟丙基-β-环糊精物理混合物和罗非昔布-羟丙基-β-环糊精包合物的溶出度分别为9.8%、18%、18.2%和27.9%,15min时的溶出度分别为22.2%、46%、30%和61%,溶出效果显著提升。
Michalska等人采用冷冻干燥法制备了ITH12674-羟丙基-β-环糊精包合物,溶解度实验结果表明:包合物的溶解度为10.7mg/mL相比较原料的溶解度0.31mg/mL,溶解度提高了30倍。结果表明,制备羟丙基-β-环糊精包合物是提高药物溶解性和稳定性的一种非常有效的方法,在临床应用上有很大的前景。
经溶出度实验和小鼠药代动力学研究显示:冷冻干燥法制备出的丹曲林钠-羟丙基-β-环糊精包合物在5min时释放了90%,相比较原料的15%,溶解速率大大提升。小鼠注射原料药后,100min时体内的药物含量仅为1.8μg/mL,药效差;小鼠注射包合物后,10min时体内的药物含量为9μg/mL,更易被吸收利用。这说明制备包合物可以有效提高丹曲林钠的生物利用度。
经检索,氢化可的松的环糊精包合方面还未见有报道,其包合具有重要的意义。
发明内容
本发明的目的是克服现有技术的不足,提供一种氢化可的松环糊精包合物软膏的制备方法,该方法制备的氢化可的松环糊精包合物软膏,具有吸收透过性好、安全可靠和稳定高效。
为了达到上述目的,本发明采用的技术方案是:
一种氢化可的松环糊精包合物软膏的制备方法,包括以下步骤:
(1)取物质的量比为1:2的氢化可的松和环糊精,用适量95%乙醇和蒸馏水溶解,混合后药物浓度为3mg/ml,超声8~12min得包合物;
(2)取单硬脂酸甘油酯0.3~0.4g、硬脂酸1.0~1.5g、白凡士林0.08~0.1g、羊毛脂0.2~0.6g、液体石蜡0.4~0.8g,加热融化,保温75~77℃,作为油相;取甘油0.2~0.6g、尼泊金乙酯0.02~0.06g,三乙醇胺0.02~0.06g、蒸馏水8~12mL,加热溶解至75~77℃,缓缓加入油相,200r/min搅拌均匀至冷凝得到软膏基质,备用;
(3)取质量比为1:20的包合物和软膏基质,水浴温度60~70℃下搅拌均匀。
本发明的有益效果是:采用该方法制备的氢化可的松环糊精包合物软膏,具有吸收透过性好、安全可靠和稳定高效,对环境污染小,使用过程中无毒副作用;生产成本低,设备操作简单,可实现工业规模化生产。
具体实施方式
下面结合实施例对本发明做进一步详细说明,这些实施例仅用来说明本发明,并不限制本发明的范围。
实施例1软膏剂
处方:每g软膏中,包合物62.5mg,单硬脂酸甘油酯25.0mg、硬脂酸84.3mg、白凡士林7.0mg、羊毛脂35.1mg、液体石蜡42.2mg作为油相;水相为甘油35.1mg、尼泊金乙酯3.5mg,三乙醇胺2.8mg、蒸馏水加至1000mg。
制备方法:将单硬脂酸甘油酯、硬脂酸、白凡士林、羊毛脂、液体石蜡,加热融化,保温75~77℃,作为油相;甘油、尼泊金乙酯,三乙醇胺、蒸馏水作为水相,加热溶解至75~77℃,缓缓加入油相,200r/min搅拌均匀,待温度降至65℃后,加入包合物搅拌均匀至冷凝。
实施例2软膏剂
处方:每g软膏中,包合物47.6mg,单硬脂酸甘油酯25.0mg、硬脂酸85.7mg、白凡士林7.1mg、羊毛脂35.7mg、液体石蜡42.8mg作为油相;水相为甘油35.7mg、尼泊金乙酯3。6mg,三乙醇胺2.9mg、蒸馏水加至1000mg。
制备方法:将单硬脂酸甘油酯、硬脂酸、白凡士林、羊毛脂、液体石蜡,加热融化,保温75~77℃,作为油相;甘油、尼泊金乙酯,三乙醇胺、蒸馏水作为水相,加热溶解至75~77℃,缓缓加入油相,200r/min搅拌均匀,待温度降至65℃后,加入包合物搅拌均匀至冷凝。
实施例3软膏剂
处方:每g软膏中,包合物38.5mg,单硬脂酸甘油酯25.2mg、硬脂酸86.5mg、白凡士林7.2mg、羊毛脂36.0mg、液体石蜡43.2mg作为油相;水相为甘油36.0mg、尼泊金乙酯3.6mg,三乙醇胺2.9mg、蒸馏水加至1000mg。
制备方法:将单硬脂酸甘油酯、硬脂酸、白凡士林、羊毛脂、液体石蜡,加热融化,保温75~77℃,作为油相;甘油、尼泊金乙酯,三乙醇胺、蒸馏水作为水相,加热溶解至75~77℃,缓缓加入油相,200r/min搅拌均匀,待温度降至65℃后,加入包合物搅拌均匀至冷凝。

Claims (5)

1.一种氢化可的松环糊精包合物软膏的制备方法,其特征在于:该制备方法包括以下步骤:
(1)取氢化可的松和环糊精,用95%乙醇和蒸馏水溶解,混合后药物浓度为2~4mg/ml,超声8~12min得到包合物;
(2)取单硬脂酸甘油酯0.3~0.4g、硬脂酸1.0~1.5g、白凡士林0.08~0.1g、羊毛脂0.2~0.6g、液体石蜡0.4~0.8g,加热融化,保温75~77℃,作为油相;取甘油0.2~0.6g、尼泊金乙酯0.02~0.06g,三乙醇胺0.02~0.06g、蒸馏水8~12m L,加热溶解至75~77℃,缓缓加入油相,200r/min搅拌均匀至冷凝得到软膏基质,备用;
(3)取包合物和软膏基质,水浴下搅拌均匀即得。
2.根据权利要求1所述的一种氢化可的松环糊精包合物软膏的制备方法,其特征在于:步骤(1)所述的氢化可的松和环糊精的物质的量比为1:2。
3.根据权利要求1所述的一种氢化可的松环糊精包合物软膏的制备方法,其特征在于:步骤(2)所述的各物质的含量为单硬脂酸甘油酯0.3~0.4g、硬脂酸1.0~1.5g、白凡士林0.08~0.1g、羊毛脂0.2~0.6g、液体石蜡0.4~0.8g;甘油0.2~0.6g、尼泊金乙酯0.02~0.06g,三乙醇胺0.02~0.06g、蒸馏水8~12m L。
4.根据权利要求1所述的一种氢化可的松环糊精包合物软膏的制备方法,其特征在于:步骤(3)所述的水浴的温度为60~70℃。
5.根据权利要求1所述的一种氢化可的松环糊精包合物软膏的制备方法,其特征在于:步骤(3)所述的包合物和软膏基质的质量比为1:20。
CN201910123638.7A 2019-02-19 2019-02-19 一种氢化可的松环糊精包合物软膏的制备方法 Pending CN109589303A (zh)

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