CN107669623A - 一种萘普生滴眼剂 - Google Patents
一种萘普生滴眼剂 Download PDFInfo
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Abstract
本发明涉及一种萘普生滴眼剂,属于药物制剂领域。本发明的萘普生滴眼剂其组成为:萘普生2‑5g,苯扎氯铵0.001‑0.005g,硼砂6‑10g,聚乙二醇‑15‑羟基硬脂酸酯1‑5g,氯化钠4‑6g,乙二胺四乙酸二钠1‑4g,吐温801‑5g,牛磺酸调节pH至6.0‑6.5,注射用水定容至1000‑2000ml。本发明的萘普生滴眼剂质量稳定,给药方便,效果显著。
Description
技术领域
本发明涉及药物制剂领域,具体涉及一种萘普生滴眼剂。
背景技术
萘普生(Naproxen)又名甲氧异丙酸,为非甾体类解热镇痛药,其抗炎、解热、镇痛效果良好,不良反应较小,目前已在世界范围内广泛应用,成为全球最主要的解热镇痛药和最畅销的非处方药之一。几十年来,萘普生市场长盛不衰,预计今后仍有广阔的发展前景。
萘普生有抗炎、解热、镇痛作用,为PG合成酶抑制剂,口服吸收迅速而完全,1次给药后2-4小时血浆浓度达峰值,在血中99%以上与血浆蛋白结合,t1/2为13-14小时,约95%自尿中以原形及代谢产物排出。对于类风湿性关节炎、骨关节炎、强直性脊椎炎、痛风、运动系统(如关节、肌肉及腱)的慢性变性疾病及轻、中度疼痛如痛经等,均有肯定疗效。中等度疼痛可于服药后1小时缓解,镇痛作用可持续7小时以上。对于风湿性关节炎及骨关节炎的疗效,类似阿司匹林。对因贫血、胃肠系统疾病或其他原因不能耐受阿司匹林、吲哚美辛等消炎镇痛药的病人,用本药常可获满意效果。
萘普生除被《中国药典》2005年版收载外,还被收入美国、英国、日本等许多国家的药典,其常用剂型除注射剂外,有片剂、栓剂、胶囊剂熬到,未见滴眼剂的报道。
发明内容
本发明的目的即是克服现有技术的不足,提供一种质量可控,效果显著的萘普生滴眼剂。
本发明解决该技术问题的技术方案是:
一种萘普生滴眼剂,其组成为:萘普生2-5g,苯扎氯铵0.001-0.005g,硼砂6-10g,聚乙二醇-15-羟基硬脂酸酯1-5g,氯化钠4-6g,乙二胺四乙酸二钠1-4g,吐温80 1-5g,牛磺酸调节pH至6.0-6.5,注射用水定容至1000-2000ml。
优选的,其组成为:萘普生3g,苯扎氯铵0.002g,硼砂8g,聚乙二醇-15-羟基硬脂酸酯3g,氯化钠5g,乙二胺四乙酸二钠2g,吐温80 3g,牛磺酸调节pH至6.0,注射用水定容至1500ml。
本发明同时提供了上述萘普生滴眼剂的制备方法,其操作步骤为:
(1)称取聚乙二醇-15-羟基硬脂酸酯溶于1/2注射用水中,加入萘普生,搅拌混合使溶解;
(2)取另一半注射用水,加入苯扎氯铵、硼砂、氯化钠、乙二胺四乙酸二钠和吐温80,搅拌使溶解均匀;
(3)将步骤(1)和步骤(2)的溶液合并,过滤,用注射用水稀释至配制全量;
(4)调节pH值至6.0-6.5,通过0.22μm微孔滤膜过滤,无菌灌装于塑料眼药水瓶中,即得。
本发明的萘普生滴眼剂质量稳定,给药方便,效果显著。
具体实施方式
下面结合具体实施例,进一步阐述本发明。应理解,这些实施例仅用于说明本发明而不用于限制本发明的范围。下列实施例中未注明具体条件的实验方法,通常按照常规条件或按照制造厂商所建议的条件。除非另外说明,否则所有的百分数、比率、比例或份数按重量计。
除非另行定义,文中所使用的所有专业与科学用语与本领域熟练人员所熟悉的意义相同。此外,任何与所记载内容相似或均等的方法及材料皆可应用于本发明方法中。文中所述的较佳实施方法与材料仅作示范之用。
实施例1
(1)按如下比例称取原料:萘普生2g,苯扎氯铵0.001g,硼砂6g,聚乙二醇-15-羟基硬脂酸酯2g,氯化钠4g,乙二胺四乙酸二钠2g,吐温80 2g,牛磺酸调节pH至6.0,注射用水定容至1000ml;
(2)将聚乙二醇-15-羟基硬脂酸酯溶于1/2注射用水中,加入萘普生,搅拌混合使溶解;
(3)取另一半注射用水,加入苯扎氯铵、硼砂、氯化钠、乙二胺四乙酸二钠和吐温80,搅拌使溶解均匀;
(4)将步骤(2)和步骤(3)的溶液合并,过滤,用注射用水稀释至配制全量;
(5)调节pH值至6.0,通过0.22μm微孔滤膜过滤,无菌灌装于塑料眼药水瓶中,即得。
实施例2
(1)按如下比例称取原料:萘普生3g,苯扎氯铵0.002g,硼砂8g,聚乙二醇-15-羟基硬脂酸酯3g,氯化钠5g,乙二胺四乙酸二钠2g,吐温80 3g,牛磺酸调节pH至6.0,注射用水定容至1500ml;
(2)将聚乙二醇-15-羟基硬脂酸酯溶于1/2注射用水中,加入萘普生,搅拌混合使溶解;
(3)取另一半注射用水,加入苯扎氯铵、硼砂、氯化钠、乙二胺四乙酸二钠和吐温80,搅拌使溶解均匀;
(4)将步骤(2)和步骤(3)的溶液合并,过滤,用注射用水稀释至配制全量;
(5)调节pH值至6.2,通过0.22μm微孔滤膜过滤,无菌灌装于塑料眼药水瓶中,即得。
实施例3
(1)按如下比例称取原料:萘普生5g,苯扎氯铵0.005g,硼砂10g,聚乙二醇-15-羟基硬脂酸酯5g,氯化钠6g,乙二胺四乙酸二钠4g,吐温80 4g,牛磺酸调节pH至6.5,注射用水定容至2000ml;
(2)称取聚乙二醇-15-羟基硬脂酸酯溶于1/2注射用水中,加入萘普生,搅拌混合使溶解;
(3)取另一半注射用水,加入苯扎氯铵、硼砂、氯化钠、乙二胺四乙酸二钠和吐温80,搅拌使溶解均匀;
(4)将步骤(2)和步骤(3)的溶液合并,过滤,用注射用水稀释至配制全量;
(5)调节pH值至6.0-6.5,通过0.22μm微孔滤膜过滤,无菌灌装于塑料眼药水瓶中,即得。
实施例4
可见异物检测:根据中国药典2015年版二部可见异物检查法,将实施例1-3的滴眼剂转移至适宜容器中,置供试品于遮光板边缘处,在明视距离,分别在黑色和白色背景下,手持供试品颈部轻轻旋转和翻转容器使药液中可能存在的可见异物悬浮,轻轻翻摇后即用目检视,重复3次,总时限为20秒,均符合规定。
渗透压的测定:根据中国药典2015年版二部渗透压摩尔浓度测定法,渗透压摩尔浓度测定仪采用冰点下降的原则设计,测定时将测定探头侵入供试溶液的中心,并降至仪器的冷却槽中;启动制冷系统,当供试溶液的温度降至凝固点以下时,仪器采用振荡器诱导溶液结冰,自动记录冰点下降的温度,仪器显示的测定值即是渗透压摩尔浓度;经测定,实施例1-3的渗透压均在260-320mOsmol/kg范围之内,符合规定。
黏度的测定:根据中国药典2015年版二部黏度测定法,采用旋转式黏度计测定特性黏度,取实施例1-3,照各品种项下所规定的仪器,按照仪器说明书操作,测定供试品的动力黏度;黏度范围均在1000-5000cp之内。
实施例5萘普生滴眼剂不同给药剂量对小鼠的镇痛作用
将小鼠置于(55±1)℃热板测痛仪上,立即记时,至第一次出现舔后足或跺后足时止,所得时间为基础痛阈。选择基础痛阈大于5秒并小于30秒的动物用于实验,以60秒不出现舔后足或跺后足为镇痛百分之百。以给药前后自身比较计算可能最大镇痛百分率(possible maximal analgesic%,PMAP)。
将50只昆明种雌性小鼠,随机分为以下5个组别,每组10只,并根据动物与人体间的等效剂量换算公式换算出相应给药剂量如下:(1)生理盐水组(5ml·kg-1);(2)本发明实施例1的萘普生滴眼剂低剂量组(50mg·kg-1);(3)本发明实施例1的萘普生本发明实施例1的萘普生滴眼剂中剂量组(75mg·kg-1);(4)滴眼剂高剂量组(100mg·kg-1);(5)萘普生市售片剂组(100mg·kg-1)。各组分别于给药15min后测定痛阈,结果如表1所示。
表1 不同给药剂量对小鼠的最大镇痛百分率
结果显示,本发明的萘普生滴眼剂低剂量组比生理盐水组稍好,本发明萘普生滴眼剂中、高剂量组与生理盐水组以及滴眼剂低剂量组存在显著性差异,表面本发明萘普生滴眼剂中、高剂量组均有显著的镇痛效果,两者的PMAP均值分别为36.53和63.63%。
Claims (3)
1.一种萘普生滴眼剂,其特征在于,其组成为:萘普生2-5g,苯扎氯铵0.001-0.005g,硼砂6-10g,聚乙二醇-15-羟基硬脂酸酯1-5g,氯化钠4-6g,乙二胺四乙酸二钠1-4g,吐温801-5g,牛磺酸调节pH至6.0-6.5,注射用水定容至1000-2000ml。
2.根据权利要求1所述的萘普生滴眼剂,其特征在于,其组成优选为:萘普生3g,苯扎氯铵0.002g,硼砂8g,聚乙二醇-15-羟基硬脂酸酯3g,氯化钠5g,乙二胺四乙酸二钠2g,吐温803g,牛磺酸调节pH至6.0,注射用水定容至1500ml。
3.根据权利要求1所述的萘普生滴眼剂的制备方法,其特征在于,其操作步骤为:
(1)称取聚乙二醇-15-羟基硬脂酸酯溶于1/2注射用水中,加入萘普生,搅拌混合使溶解;
(2)取另一半注射用水,加入苯扎氯铵、硼砂、氯化钠、乙二胺四乙酸二钠和吐温80,搅拌使溶解均匀;
(3)将步骤(1)和步骤(2)的溶液合并,过滤,用注射用水稀释至配制全量;
(4)调节pH值至6.0-6.5,通过0.22μm微孔滤膜过滤,无菌灌装于塑料眼药水瓶中,即得。
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CN105380901A (zh) * | 2015-11-18 | 2016-03-09 | 侯宇华 | 一种他氟前列素滴眼剂及其制备方法 |
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Non-Patent Citations (3)
Title |
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SANTI SPAMPINATO等: "Effects of Sodium Naproxen Eye Drops on Rabbit Ocular Inflammation Induced by Sodium Arachidonate", 《JOURNAL OF OCULAR PHARMACOLOGY》 * |
VINCENTO PAPA等: "Naproxen ophthalmic solution to manage inflammation after phacoemulsification", 《JOURNAL OF CATARACT AND REFRACTIVE SURGERY》 * |
王明玉等: "萘普生滴眼液的制备与临床应用", 《药品评价》 * |
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