CN104367566A - 一种吲哚美辛巴布剂及其组合物 - Google Patents
一种吲哚美辛巴布剂及其组合物 Download PDFInfo
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- CN104367566A CN104367566A CN201310350111.0A CN201310350111A CN104367566A CN 104367566 A CN104367566 A CN 104367566A CN 201310350111 A CN201310350111 A CN 201310350111A CN 104367566 A CN104367566 A CN 104367566A
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- indomethacin
- crotamiton
- methyl pyrrolidone
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Abstract
本发明提供了一种吲哚美辛巴布剂,由背衬、膏体和防黏膜组成,膏体组成成分包括吲哚美辛、克罗米通、N-甲基吡咯烷酮和水性凝胶基质,膏体中吲哚美辛的含量为0.1-3wt%,克罗米通的重量为吲哚美辛的0.1-6倍,N-甲基吡咯烷酮的重量为吲哚美辛的1-15倍,水性凝胶基质余量。该吲哚美辛巴布剂采用克罗米通和N-甲基吡咯烷酮的混合溶剂增加吲哚美辛的溶解度,使吲哚美辛溶解完全,并均匀分散在水性凝胶基质中长期不易结晶,增加吲哚美辛的透皮吸收性能;透皮促渗剂、保湿剂等保证了巴布剂高含水量及长时保湿性,增加药物的透皮吸收。该哚美辛巴布剂可用于风湿性关节炎、痛风性关节炎、强直性脊髓炎、腱鞘炎等各种关节疼痛疾病。
Description
技术领域
本发明涉及一种亲水巴布剂,尤其涉及一种含水量高、稳定性和透皮性好的吲哚美辛巴布剂及吲哚美辛组合物。
背景技术
吲哚美辛(Indomethacin)是非甾体消炎镇痛药的典型药物之一,主要是通过抑制体内前列腺素(PG)合成而产生镇痛、消炎及解热作用。临床上常用于急慢性风湿性关节炎、痛风性关节炎、强直性脊髓炎及滑囊炎、腱鞘炎及骨关节炎、颈椎病、肌肉痛、腰疼等疾病的治疗。
临床发现长期口服吲哚美辛,对胃肠道有严重地副作用,如刺激消化道粘膜,进而导致胃出血或胃溃疡;此外,对中枢神经系统也有副反应,如头痛眩晕、失眠、共济失调等。为了减少吲哚美辛经口服吸收所产生的副作用,现代药剂工作者研究了外用制剂,如巴布剂、乳膏、搽剂等。其中,乳膏和搽剂作用时间短,给药次数频繁;给药剂量不精确,造成药效不稳定;易有膏体残留污染衣物等缺点。
巴布剂是一种新型外用贴剂,与传统橡胶膏相比,巴布剂具有载药量大,保湿性强,与皮肤有很好的相容性,给药方便,剂量准确,能产生持久的治疗作用等优点。巴布剂以亲水性高分子材料为基质,释药速率快,释药符合零级释放速率方程,使患者体内血药浓度恒定,减少不良反应的发生;此外,巴布剂保湿、透气,可反复揭贴,对皮肤无刺激和过敏性。
目前,巴布剂存在的最主要的问题是如何克服皮肤屏障。皮肤亲脂性的角质层和亲水性的活性皮肤层(表皮和真皮)共同构成了药物经皮吸收的屏障。因此,药物需要适宜的脂溶性和水溶性,才能透过生物膜脂质双分子层而吸收。吲哚美辛为难溶性药物,其在水、油中溶解度差影响了药物的透皮吸收。因此,改善吲哚美辛的溶解度,提高稳定性,并保证贮留稳定性,是将其制成易于透皮吸收制剂解决的首要问题。目前进行了许多研究和努力来解决这些问题,但仍未找到一种安全有效地方法。
例如,CN102526001A利用离子对技术将吲哚美辛与有机胺类成盐,来增加其溶解度,但此类方法合成的盐受温度、pH等条件的影响易分解,稳定性差;也有采用增溶剂和透皮促渗剂,如烷基吡咯烷酮、氮酮+丙二醇(CN1973836A),但是,吲哚美辛在水性基质中溶解度低,并且长时间储存可能会出现结晶,导致该药物的透皮吸收性能差。
发明内容
本发明的目的在于克服上述不足,提供一种易于透皮吸收、含水量高、作用持久及刺激性小的吲哚美辛亲水性巴布剂。进一步而言,本发明的目的是研究吲哚美辛水性巴布剂,使其在制备及贮存中有良好的溶解稳定性,显示出高含水量及长时间的保湿性,以保证药物的持续释放及提高药物的透皮吸收性能。
本发明的第一个方面是提供一种吲哚美辛巴布剂,包括背衬(常用无纺布或弹力布等)、膏体和防黏膜,其中:
膏体中吲哚美辛的含量优选为0.1-3wt%,更优选为0.2-2wt%,更优选为0.2-1.5wt%,更优选为0.3-1wt%;
膏体中克罗米通的重量优选为吲哚美辛的0.1-6倍,更优选为0.2-4倍,更优选为0.5-3倍,更优选为1-2.5倍,更优选为1.5-2倍;
膏体中N-甲基吡咯烷酮的重量优选为吲哚美辛的1-15倍,更优选为1.5-10倍,更优选为1.5-9倍,更优选为2-8倍,更优选为3.5-6倍,更优选为4-5.2倍。
在本发明第一个方面的一种优选实施例中,所述巴布剂由背衬(常用无纺布或弹力布等)、膏体和防黏膜组成,所述膏体组成成分包括吲哚美辛、溶剂和水性凝胶基质,经巴布剂成型工艺制备成亲水性透皮吸收制剂,其中,所述溶剂包括克罗米通和N-甲基吡咯烷酮;其中:
膏体中吲哚美辛的含量优选为0.1-3wt%,更优选为0.2-2wt%,更优选为0.2-1.5wt%,更优选为0.3-1wt%;
膏体中克罗米通的重量优选为吲哚美辛的0.1-6倍,更优选为0.2-4倍,更优选为0.5-3倍,更优选为1-2.5倍,更优选为1.5-2倍;
膏体中N-甲基吡咯烷酮的重量优选为吲哚美辛的1-15倍,更优选为1.5-10倍,更优选为1.5-9倍,更优选为2-8倍,更优选为3.5-6倍,更优选为4-5.2倍;余量为水性凝胶基质。
优选地,本发明上述任意水性凝胶基质的组成成分包括、并优选组成为:亲水性基体材料0.1-40wt%,更优选0.5-30wt%,更优选5-25wt%,更优选10-20wt%;
交联剂0.01-2wt%,更优选0.02-1wt%,更优选0.05-0.8wt%,更优选0.1-0.6wt%,更优选0.3-0.5wt%;
交联调节剂0.01-4wt%,更优选0.02-2wt%,更优选0.08-1.5wt%,更优选0.12-1wt%,更优选0.3-0.7wt%;
保湿剂10-60wt%,更优选19-50wt%,更优选20-50wt%,更优选25-42wt%,更优选30-38wt%;
透皮促渗剂0.05-45wt%,更优选0.1-30wt%,更优选2-25wt%,更优选5-20wt%,更优选10-16wt%;
水10-85wt%,更优选20-80wt%,更优选30-68wt%,更优选38-56wt%,更优选45-50wt%。
所述的亲水性基体材料可是亲水性高分子材料,其中,亲水性高分子材料可以是选自1)纤维素及其衍生物,如羧甲基纤维素、羧甲基纤维素盐、甲基纤维素、乙基纤维素、羟丙基甲基纤维素、羟乙基纤维素等;2)合成高分子材料,如聚乙烯醇、卡波姆、聚丙烯酸、聚丙烯酸盐或酯、聚丙烯酸-聚丙烯酸钠共聚物(如NP-700)、聚丙烯酸-聚丙烯酸钠共聚物(如NP-600)、聚丙烯酸-聚丙烯酸钠共聚物(如NP-800)、聚乙烯吡咯烷酮(PVP)、聚丁烯、羧乙烯聚合体;3)其它源于生物体的亲水性胶体、多糖、多肽或其亲水性衍生物,如明胶、阿拉伯胶、海藻酸盐、藻酸、藻酸盐、壳聚糖等,所述亲水性高分子材料可以是上述物质中的一种或几种;所述盐可以是钾盐、钠盐、钙盐等。
所用的交联剂可以是选自氢氧化铝、氢氧化钙、甘羟铝、氯化铝、氧化铝、氯化钙、柠檬酸铝、合成硅酸铝、氨基乙酸二羟铝、谷氨酸铝等在内的一种或几种。
所用的交联调节剂可以是选自酒石酸、柠檬酸、苹果酸、依地酸(EDTA)、葡萄糖酸、或其盐等在内的一种或几种,所述盐可以是钾盐、钠盐、钙盐等,如EDTA二钠盐。
所用的保湿剂优选为多元醇,可以是选自乙二醇、聚乙二醇(如PEG-400、PEG-600、PEG-800)、甘油、丙二醇、聚丙二醇、D-山梨醇、1,3-丁二醇、己二醇、木糖醇、液体石蜡等在内的一种或几种。
所用的透皮促渗剂可以是选自月桂氮卓酮、薄荷油、桉叶油、尿素、二甲基亚砜、丙二醇、聚乙烯醇、软磷脂、磷脂酰甘油、二乙二醇单乙基醚、N-甲基吡咯烷酮(NMP)、葵二酸二乙酯、油酸、油醇、己二酸二异丙酯、辛基十二烷醇、苄醇、肉豆蔻酸异丙酯、月桂醇,2-辛基十二烷醇、乙基2-乙基己酸、钙巯基乙酸酯、癸甘油单酯、辛酸酯、癸酯、油酸癸酯、角鲨烷和/或D-柠檬烯等在内的一种或几种。
所用的表面活性剂可以是离子型或非离子型表面活性剂,并优选为阴离子型表面活性剂、非离子型表面活性剂中的任意一种或几种,可以是选自聚山梨酯(如吐温-80)、十二烷基硫酸钠、二辛基琥珀酸磺酸钠、山梨醇脂肪酸酯、单硬脂酸甘油酯、聚氧乙烯氢化蓖麻油等在内的一种或几种。
此外,所述膏体还可以包括防腐剂、黏着剂、填充剂、抗氧剂、清凉剂中的一种或几种。其中:
所述防腐剂可以是选自尼泊金类(如尼泊金甲酯、尼泊金乙酯等)、苯甲酸、对羟基苯甲酸乙酯、苯扎氯铵等在内的一种或几种。
黏着剂可以是选自聚乙烯吡咯烷酮(如PVPK30)、聚丙烯酸等在内的一种或两种。
填充剂可以是选自微粉硅胶、碳酸钙、高岭土、皂土、氧化锌、二氧化钛等在内的一种或几种。
抗氧剂可以是选自亚硫酸氢钠、焦亚硫酸钠、枸橼酸、二丁基羟基甲苯、丁基羟基茴香醚、乙二胺四乙酸等在内的一种或几种。
清凉剂可以是选自薄荷脑、樟脑、薄荷醇、薄荷油等在内的一种或几种。
本发明的第二个方面是提供一种吲哚美辛组合物,包括吲哚美辛、克罗米通和N-甲基吡咯烷酮,克罗米通的重量为吲哚美辛的0.1-6倍,更优选为0.2-4倍,更优选为0.5-3倍,更优选为1-2.5倍,更优选为1.5-2倍;N-甲基吡咯烷酮的重量为吲哚美辛的1-15倍,更优选为1.5-10倍,更优选为1.5-9倍,更优选为2-8倍,更优选为3.5-6倍,更优选为4-5.2倍。
优选地,所述吲哚美辛组合物还包括水性凝胶基质,其中,吲哚美辛组合物中吲哚美辛的含量为优选为0.1-3wt%(更优选为0.2-2wt%,更优选为0.2-1.5wt%,更优选为0.3-1wt%),水性凝胶基质余量。
优选地,所述水性凝胶基质的组成成分包括:
亲水性基体材料0.1-40wt%,更优选0.5-30wt%,更优选5-25wt%,更优选10-20wt%;
交联剂0.01-2wt%,更优选0.02-1wt%,更优选0.05-0.8wt%,更优选0.1-0.6wt%,更优选0.3-0.5wt%;
交联调节剂0.01-4wt%,更优选0.02-2wt%,更优选0.08-1.5wt%,更优选0.12-1wt%,更优选0.3-0.7wt%;
保湿剂10-60wt%,更优选19-50wt%,更优选20-50wt%,更优选25-42wt%,更优选30-38wt%;
透皮促渗剂0.05-45wt%,更优选0.1-30wt%,更优选2-25wt%,更优选5-20wt%,更优选10-16wt%;
水10-85wt%,更优选20-80wt%,更优选30-68wt%,更优选38-56wt%,更优选45-50wt%。
所述吲哚美辛组合物还可以包括防腐剂、黏着剂、填充剂、抗氧剂、清凉剂中的一种或几种。
本发明第二个方面所述的亲水性基体材料、交联剂、交联调节剂、保湿剂、透皮促渗剂、防腐剂、黏着剂、填充剂、抗氧剂、清凉剂等,分别与本发明第一个方面所述的亲水性基体材料、交联剂、交联调节剂、保湿剂、透皮促渗剂、防腐剂、黏着剂、填充剂、抗氧剂、清凉剂等分别具有相同的含义与重量配比范围。
申请人发现:克罗米通和N-甲基吡咯烷酮两者混合使用时能够增加吲哚美辛的溶解度,但当克罗米通用量过大时,长时间放置会变色,稳定性较差,用量过小,吲哚美辛溶解性差;N-甲基吡咯烷酮用量过大,稳定性差且易产生臭味,用量过少吲哚美辛溶解性差,透皮性能也就变差。申请人经大量实验发现在克罗米通的用量为吲哚美辛的0.1-6倍、优选0.2-4倍,N-甲基吡咯烷酮的用量为吲哚美辛的1-15倍、优选1.5-10倍时,吲哚美辛溶解完全,并且稳定性好,且均匀分散在水性凝胶基质中长期不易结晶。
本发明提供的吲哚美辛巴布剂以吲哚美辛为活性成分,采用克罗米通和N-甲基吡咯烷酮的混合溶剂增加吲哚美辛的溶解度,使吲哚美辛溶解完全,并均匀分散在水性凝胶基质中长期不易结晶,增加吲哚美辛的透皮吸收性能;加入的透皮促渗剂、保湿剂等保证了吲哚美辛巴布剂的高含水量及长时保湿性,增加药物的透皮吸收。本发明提供的哚美辛巴布剂可用于风湿性关节炎、痛风性关节炎、强直性脊髓炎、腱鞘炎、肌肉痛、腰疼等各种关节疼痛疾病。
具体实施方式
下面参照具体的实施例对本发明作进一步的描述,以更好地理解本发明。
实施例1
本实施例提供的吲哚美辛巴布剂由背衬、膏体和防黏膜组成,所述膏体的组成成分包括:
先将2.0g羧甲基纤维素钠溶解在甘油和部分纯化水中,再加入1.0g聚氧乙烯单月桂酸酯和0.1g吐温80,加热至40℃,搅拌均匀,得A组分;
取1g明胶溶解在部分纯化水中,膨胀完全后加热至60℃,搅拌均匀至半透明的胶体,制得B组分;
将5.0g聚丙烯酸钠部分中和物、0.06g氢氧化铝及0.15g依地酸二钠溶解在甘油中,搅拌混合均匀,制得C组分;
将0.12g酒石酸加入到纯化水中,接着加入预先溶解在克罗米通、N-甲基吡咯烷酮中的吲哚美辛溶液,混合,搅拌均匀,得D组分;
取剩余纯化水于预制罐中,加入A组分、B组分、C组分,使其充分炼和,分散均匀,再加入D组分,约40-50℃保温,混合,搅拌均匀,制成膏。将膏均匀涂布、切片、包装、制得巴布剂。
实施例2
本实施例提供的吲哚美辛巴布剂由背衬、膏体和防黏膜组成,所述膏体的组成成分包括:
先将2.0g羧甲基纤维素钠溶解在甘油和部分纯化水中,再加入1.0g聚氧乙烯单月桂酸酯和0.1g吐温80,加热至40℃,搅拌均匀,得A组分;
取2.0g明胶溶解在部分纯化水中,膨胀完全后加热至60℃,搅拌均匀至半透明的胶体,制得B组分;
将6.0g聚丙烯酸钠部分中和物、0.05g氢氧化铝及0.15g依地酸二钠溶解在甘油中,搅拌混合均匀,制得C组分;
将0.12g酒石酸加入到纯化水中,接着加入预先溶解在克罗米通、N-甲基吡咯烷酮中的吲哚美辛溶液,混合,搅拌均匀,得D组分;
取剩余纯化水于预制罐中,加入尼泊金甲酯,再加入A组分、B组分、C组分,使其充分炼和,分散均匀,再加入D组分,约40-50℃保温,混合,搅拌均匀,制成膏。将膏均匀涂布、切片、包装、制得巴布剂。
实施例3
本实施例提供的吲哚美辛巴布剂由背衬、膏体和防黏膜组成,所述膏体的组成成分包括:
先将2.0g羧甲基纤维素钠溶解在甘油和部分纯化水中,再加入1.0g羧乙烯聚合体、0.3g聚氧乙烯氢化蓖麻油和0.1g吐温80,加热至40℃,搅拌均匀,得A组分。
取1.0g明胶溶解在部分纯化水中,膨胀完全后加热至60℃,搅拌均匀至半透明的胶体,制得B组分;
将6.0g聚丙烯酸钠部分中和物、0.05g氢氧化铝及0.15g依地酸二钠溶解在甘油中,搅拌混合均匀,制得C组分;
将0.12g酒石酸加入到纯化水中,接着加入预先溶解在克罗米通、N-甲基吡咯烷酮中的吲哚美辛溶液,混合,搅拌均匀,得D组分;
取剩余纯化水于预制罐中,加入A组分、B组分、C组分,使其充分炼和,分散均匀,再加入D组分,约40-50℃保温,混合,搅拌均匀,制成膏体。将膏体均匀涂布、切片、包装、制得巴布剂。
1、稳定性试验
按照实施例1和例3制备巴布剂,将巴布剂分别用铝塑包装袋密封,放置在40℃,75%恒温箱中保存,于0-6月测定吲哚美辛含量,结果如表1所示,6月内吲哚美辛含量基本稳定。在室温条件下(温度30℃、相对湿度为60%)放置24个月,分别于0、1、2、3、24个月取样,测定吲哚美辛含量,结果如表2所示,在24个月内吲哚美辛含量稳定,没有出现晶体析出,说明本发明吲哚美辛稳定性良好。
表1高温(40℃)下吲哚美辛相对含量
取样时间 | 0 | 1月 | 3月 | 6月 |
实施例1 | 100.00% | 98.12% | 94.26% | 93.58% |
实施例3 | 100.00% | 97.70% | 95.14% | 93.83% |
表2室温(30℃、相对湿度60%)下吲哚美辛相对含量
取样时间 | 0 | 1个月 | 2个月 | 3个月 | 24个月 |
实施例1 | 100.00% | 98.14% | 98.64% | 98.13% | 96.56% |
实施例3 | 100.00% | 99.27% | 99.85% | 98.74% | 97.98% |
2、体外经皮渗透试验
采用改良Franz扩散池,将小鼠皮肤固定在扩散池上,真皮面向接受室,角质层面向供给室,接受室内加入适量磷酸盐缓冲溶液。将实施例1制得的巴布剂贴于皮肤上,开启恒温(32±1)℃水浴循环和磁力搅拌器(300r·min-1)在不同时间点2、4、6、8、12、24h取样,利用高相液相色谱法测定吲哚美辛含量,Q为单位面积累积透过量,结果见表3。
表3体外经皮渗透试验结果
透皮时间(h) | 2 | 4 | 6 | 8 | 12 | 24 |
Q(μg·cm-2) | 19.30 | 40.98 | 54.62 | 72.54 | 136.13 | 230.69 |
由表3可知,本发明实施例1制得的吲哚美辛巴布剂的透皮速率为9.79μg·cm-2·h-1,说明本发明提供的吲哚美辛巴布剂透皮性能良好。
3、皮肤刺激性试验
取24只SD大鼠,雌雄各半,体重约为160-180g,平均分为三组,并将腹部皮肤用剃毛机剃除。第一组大鼠在脱毛区域敷贴(2×3)cm2的实施例1制得的吲哚美辛巴布剂,24后剥除,第二组在脱毛区域敷贴对照物空白巴布剂,24后剥除,第三组连续给药14d后剥除,观察剥除时、剥除24h后、剥除48h后、7剥除2h后脱毛区受刺激情况。结果显示三组大鼠的脱毛区的皮肤均未出现红斑和水肿等过敏反应,说明此巴布剂对皮肤无刺激性,安全性好。
综上所述,本发明提供的吲哚美辛亲水性巴布剂稳定性良好、含水量高、保湿性强、透皮吸收性能良好、对皮肤无刺激性。
以上对本发明的具体实施例进行了详细描述,但其只是作为范例,本发明并不限制于以上描述的具体实施例。对于本领域技术人员而言,任何对本发明进行的等同修改和替代也都在本发明的范畴之中。因此,在不脱离本发明的精神和范围下所作的均等变换和修改,都应涵盖在本发明的范围内。
Claims (10)
1.一种吲哚美辛巴布剂,包括背衬、膏体和防黏膜,其特征在于,所述膏体组成成分包括吲哚美辛、溶剂和水性凝胶基质,经巴布剂成型工艺制备成亲水性透皮吸收制剂;其中,膏体中吲哚美辛的含量为0.1-3wt%,所述溶剂包括克罗米通和N-甲基吡咯烷酮,克罗米通的重量为吲哚美辛的0.1-6倍,N-甲基吡咯烷酮的重量为吲哚美辛的1-15倍。
2.根据权利要求1所述的吲哚美辛巴布剂,由其特征在于,克罗米通的重量为吲哚美辛的0.2-4倍,N-甲基吡咯烷酮的重量为吲哚美辛的1.5-10倍。
3.根据权利要求2所述的吲哚美辛巴布剂,由其特征在于,所述水性凝胶基质的组成成分包括:
4.根据权利要求1所述的吲哚美辛巴布剂,由其特征在于,所述水性凝胶基质的组成成分包括:
5.根据权利要求3所述的吲哚美辛巴布剂,由其特征在于,所述亲水性基体材料选自纤维素及其衍生物、亲水性合成高分子材料、其它源于生物体的亲水性胶体、多糖、多肽或其亲水性衍生物、亲水性粘土中的一种或几种。
6.根据权利要求3所述的吲哚美辛巴布剂,由其特征在于,所述透皮促渗剂为月桂氮卓酮、薄荷油、桉叶油、尿素、二甲基亚砜、丙二醇、聚乙烯醇、软磷脂、磷脂酰甘油、二乙二醇单乙基醚、N-甲基吡咯烷酮、葵二酸二乙酯、油酸、油醇、己二酸二异丙酯、辛基十二烷醇、苄醇、肉豆蔻酸异丙酯、月桂醇,2-辛基十二烷醇、乙基2-乙基己酸、钙巯基乙酸酯、癸甘油单酯、辛酸酯、癸酯、油酸癸酯、角鲨烷和/或D-柠檬烯中的一种或几种。
7.一种吲哚美辛组合物,其特征在于,包括吲哚美辛、克罗米通和N-甲基吡咯烷酮,克罗米通的重量为吲哚美辛的0.1-6倍,N-甲基吡咯烷酮的重量为吲哚美辛的1-15倍。
8.根据权利要求7所述的吲哚美辛组合物,其特征在于,克罗米通的重量为吲哚美辛的0.2-4倍,N-甲基吡咯烷酮的重量为吲哚美辛的1.5-10倍。
9.根据权利要求7或8所述的吲哚美辛组合物,其特征在于,还包括水性凝胶基质,其中,吲哚美辛组合物中吲哚美辛的含量为0.1-3wt%,水性凝胶基质余量。
10.根据权利要求9所述的吲哚美辛组合物,其特征在于,所述水性凝胶基质的组成成分包括:
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CN107198681A (zh) * | 2017-05-16 | 2017-09-26 | 蔡志浩 | 一种吲哚美辛水凝胶贴剂 |
CN111297893A (zh) * | 2019-12-18 | 2020-06-19 | 杭州仁德医药有限公司 | 一种具有防水性能的复方吲哚美辛达克罗宁贴膏及其制备方法 |
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CN1973836A (zh) * | 2006-12-01 | 2007-06-06 | 中国人民解放军第二军医大学 | 一种治疗痛经的亲水性巴布剂 |
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CN105287361A (zh) * | 2015-11-13 | 2016-02-03 | 北京泰德制药股份有限公司 | 含有非甾体抗炎药微乳的皮肤外用制剂 |
CN107198681A (zh) * | 2017-05-16 | 2017-09-26 | 蔡志浩 | 一种吲哚美辛水凝胶贴剂 |
CN111297893A (zh) * | 2019-12-18 | 2020-06-19 | 杭州仁德医药有限公司 | 一种具有防水性能的复方吲哚美辛达克罗宁贴膏及其制备方法 |
CN111297893B (zh) * | 2019-12-18 | 2021-11-12 | 杭州仁德医药有限公司 | 一种具有防水性能的复方吲哚美辛达克罗宁贴膏及其制备方法 |
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