CN106580903B - 罗红霉素缓释药物组合物 - Google Patents
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Abstract
本发明涉及一种罗红霉素缓释药物组合物,含有至少有效治疗剂量的罗红霉素、水溶性高分子物质、水不溶性高分子物质、糖类、二氧化钛。该药物组合物对光照、高温、高湿等条件比较稳定,具有缓释效果。本发明的罗红霉素缓释药物组合物的制备工艺简单,适合工业化生产。
Description
技术领域
本发明属于医药技术领域,具体涉及一种罗红霉素缓释药物组合物及其制备方法。
背景技术
罗红霉素化学名称为9-[O-[(2-甲氧基乙氧基)-甲基]肟基]红霉素,分子式C14H76N2O15,分子量837.05。大环内酯类抗生素自发现至今,已经历了40多年的发展,至今仍在各种感染性疾病中得到广泛的应用。罗红霉素是红霉素醚肟类衍生物。罗红霉素通过对红霉素分子的改造,克服了红霉素副作用大耐受性差的缺点,使抗菌活性和抗菌谱得到改善,并且具有口服吸收好,峰浓度高,半衰期长,组织和细胞内穿透力强、血药浓度均衡,与多数细菌MIC90比值高的特点;其药代动力学特征明显优于红霉素,临床适用性显著提高,是对大环内酯类抗生素新的突破,也是临床上首选口服抗生素之一;另有研究显示,罗红霉素属于时间依赖型药物,即在药物浓度达到某一浓度以上时,其杀菌效能与药物和细菌接触时间成正比,即时间愈长杀菌效率愈高,故制备成缓控释剂型有利于提高杀菌效能。
专利CN1500491A公开了一种口服罗红霉素控释制剂,该制剂通过水溶性高分子为基础的溶蚀释放机制释放,采用羧甲基纤维素钠、聚乙烯吡咯烷酮、羟丙甲纤维素高粘度亲水性高分子材料吸水膨胀形成凝胶,制成缓释制剂。专利CN101224217A制备了一种骨架型罗红霉素缓释胶丸胶囊,采用蜡质骨架材料和亲水骨架材料,蜡质骨架材料为十八醇、十六醇或十八酸或单硬脂酸甘油酯或氢化蓖麻油,亲水性骨架材料为黄原胶或海藻酸或卡波姆974P。专利CN1449764A公开了一种罗红霉素缓释制剂及其制备方法,采用的包衣材料为控释膜包衣材料或脂质材料。
罗红霉素对光照、高温、高湿尤其是光照不稳定,如专利CN1500491A公开的口服罗红霉素控释制剂,在光照(4500lx)5天有关物质即达到4.71%,光照(4500lx)10天有关物质即达到6.73%。现有技术将罗红霉素制备成缓控释剂型提高了杀菌效能,但未能解决罗红霉素制剂的稳定性问题。
发明内容
本发明提供一种罗红霉素缓释药物组合物及其制备方法,具体地为一种新的罗红霉素缓释片剂,它采用湿法制粒后压片而成。
本发明提供的罗红霉素缓释药物组合物,含有有效治疗剂量的罗红霉素、水溶性高分子物质、水不溶性高分子物质、糖类和二氧化钛。
优选的按照该药物组合物的总重量计算,含有1~10重量%的二氧化钛。
优选的按照该药物组合物的总重量计算,含有30~70重量%的罗红霉素,10~30重量%的水溶性高分子物质,10~30重量%的水不溶性高分子物质,1~10重量%的糖类,1~4重量%的二氧化钛。
更优选按照该药物组合物的总重量计算,含有45~65重量%的罗红霉素,12~20重量%的水溶性高分子物质,10~20重量%的水不溶性高分子物质,4~8重量%的糖类,1~2重量%的二氧化钛。
其中,水溶性高分子物质选自羧甲基纤维素钠、聚乙烯吡咯烷酮、羟丙甲基纤维素或其组合物;水不溶性高分子物质选自乙基纤维素、微晶纤维素或底取代羟丙基纤维素;糖类选自淀粉、蔗糖或甘露醇。
优选的,水溶性高分子物质是羧甲基纤维素钠、聚乙烯吡咯烷酮和羟丙甲基纤维素的组合物;水不溶性高分子物质是底取代羟丙基纤维素;糖类是蔗糖。
本发明提供的罗红霉素缓释药物组合物,含有100~300mg罗红霉素,优选150~300mg罗红霉素;制剂形式为片剂,优选薄膜衣片;给药方式为患者每天口服给药一次。
本发明提供的罗红霉素缓释药物组合物,不仅实现了药物缓释作用,还极大的提高了罗红霉素缓药物组合物的稳定性,尤其是提高了光照稳定性,非常有利于药物的贮藏和日常使用。
具体实施方式
下面将结合具体实施例,对本发明的实施方案进行详细描述。下面实施例仅用于说明本发明,而不应视为限定本发明的范围。
实施例1
制剂处方
1000片包衣液处方
欧巴代 10g
80%乙醇 170ml
制剂工艺如下:
称取罗红霉素、低取代羟丙基纤维素、羧甲基纤维素钠、羟丙甲基纤维素、蔗糖、微粉硅胶,加入聚乙烯吡咯烷酮K30的水溶液,制成干湿适中的软材,20目筛制粒,40~50℃烘干,干燥后18目整粒,加入硬脂酸镁和二氧化钛充分混匀,压片、包衣即得。
实施例2
制剂处方
称取罗红霉素、低取代羟丙基纤维素、羧甲基纤维素钠、羟丙甲基纤维素、蔗糖、微粉硅胶,加入聚乙烯吡咯烷酮K30的水溶液,制成干湿适中的软材,20目筛制粒,40~50℃烘干,干燥后18目整粒,加入硬脂酸镁和二氧化钛充分混匀,压片即得。
实施例3
制剂处方
称取罗红霉素、低取代羟丙基纤维素、羧甲基纤维素钠、羟丙甲基纤维素、蔗糖、微粉硅胶,加入聚乙烯吡咯烷酮K30的水溶液,制成干湿适中的软材,20目筛制粒,40~50℃烘干,干燥后18目整粒,加入硬脂酸镁和二氧化钛充分混匀,压片即得。
实施例4
制剂处方
1000片包衣液处方
欧巴代 10g
80%乙醇 170ml
制剂工艺如下:
称取罗红霉素、低取代羟丙基纤维素、羧甲基纤维素钠、淀粉、微粉硅胶,加入聚乙烯吡咯烷酮K30的水溶液,制成干湿适中的软材,20目筛制粒,40~50℃烘干,干燥后18目整粒,加入硬脂酸镁和二氧化钛充分混匀,压片、包衣即得。
实施例5
制剂处方
1000片包衣液处方
欧巴代 10g
80%乙醇 170ml
制剂工艺如下:
称取罗红霉素、低取代羟丙基纤维素、甘露醇、微粉硅胶,加入聚乙烯吡咯烷酮K30的水溶液,制成干湿适中的软材,20目筛制粒,40~50℃烘干,干燥后18目整粒,加入硬脂酸镁和二氧化钛充分混匀,压片、包衣即得。
实施例6
制剂处方
1000片包衣液处方
欧巴代 10g
80%乙醇 170ml
制剂工艺如下:
称取罗红霉素、乙基纤维素、羧甲基纤维素钠、羟丙甲基纤维素、蔗糖、微粉硅胶,加入聚乙烯吡咯烷酮K30的水溶液,制成干湿适中的软材,20目筛制粒,40~50℃烘干,干燥后18目整粒,加入硬脂酸镁和二氧化钛充分混匀,压片、包衣即得。
实施例7
制剂处方
1000片包衣液处方
欧巴代 10g
80%乙醇 170ml
制剂工艺如下:
称取罗红霉素、微晶纤维素、羧甲基纤维素钠、羟丙甲基纤维素、蔗糖、微粉硅胶,加入聚乙烯吡咯烷酮K30的水溶液,制成干湿适中的软材,20目筛制粒,40~50℃烘干,干燥后18目整粒,加入硬脂酸镁和二氧化钛充分混匀,压片、包衣即得。
实验例1
实施例1-7制备的罗红霉素药物组合物稳定性考察。将实施例1-7制备的罗红霉素药物组合物在光照(4500Lx)、高温(60℃)、高湿(25℃RH92.5%)放置5、10天,测定其有关物质,结果如下:
表1稳定性考察试验结果
稳定性考察表明,罗红霉素缓释药物组合物对光照、高温、高湿等条件比较稳定。
实验例2
释放度检查
采用中国药典2015版四部0931溶出度与释放度测定法第一法,以pH5.5醋酸盐缓冲液1000ml为溶出介质,转速为100r/min在指定时间点取样,用高效液相色谱仪测定,分别测定罗红霉素缓控释制剂体外释放度。结果如下:
表2体外释放度检测结果
根据释放度结果可以看出,罗红霉素在释放初期很快释放,2小时释放度均达到40%以上,之后缓慢释放,24小时释放度达到最大,释放度均达到98.5%以上,释放完全。
实验例3
生物利用度
对比本发明的罗红霉素缓释片剂(实施例1)和市售普通片剂在比格犬体内药代动力学,本发明的罗红霉素缓释片剂每天服用一次,每次300mg,市售的普通片剂每天服用两次,每次150mg,于指定时间点取样,采用LC-MS测定血药浓度,结果如下:
表3普通片剂和本发明罗红霉素缓释片剂腰带动力学试验结果
| 参数 | 罗红霉素缓释片剂(实施例1) | 普通片剂 |
| Tmax(h) | 1.97±0.45 | 1.62±0.30 |
| Cmax(μg/mL) | 5.54±0.98 | 7.67±1.24 |
| T<sub>1/2</sub>(h) | 26.1±1.06 | 19.9±1.38 |
| AUC(μg·h/mL) | 221.2±19.7 | 194.3±26.2 |
通过表3中的数据可以看出,就药动学和生物等效性而言,与普通片剂相比,本发明的罗红霉素缓释片具有缓释特征,缓释生物利用度为102.5%,生物等效。一日一次,口服300mg本发明罗红霉素缓释片剂的效果不会低于每日2次口服150mg罗红霉素普通片剂效果,与常规制剂相比,本发明的罗红霉素缓释制剂具有缓释效果,又能保证药物释放吸收完全。
Claims (6)
1.罗红霉素缓释药物组合物,其特征在于,所述的药物组合物为薄膜衣片,含有有效治疗剂量的罗红霉素、水溶性高分子物质、水不溶性高分子物质、糖类和二氧化钛,其中,按照该药物组合物的总重量计算,含有:30~70重量%的罗红霉素,10~30重量%的水溶性高分子物质,10~30重量%的水不溶性高分子物质,1~10重量%的糖类,1~4重量%的二氧化钛,并且水溶性高分子物质选自羧甲基纤维素钠、聚乙烯吡咯烷酮、羟丙甲基纤维素或其组合物;水不溶性高分子物质选自乙基纤维素、微晶纤维素或低取代羟丙基纤维素;糖类选自淀粉、蔗糖或甘露醇,其中二氧化钛存在于片芯中。
2.根据权利要求1所述的罗红霉素缓释药物组合物,其特征在于,含有45~65重量%的罗红霉素,12~20重量%的水溶性高分子物质,10~20重量%的水不溶性高分子物质,4~8重量%的糖类,1~2重量%的二氧化钛。
3.根据权利要求1所述的罗红霉素缓释药物组合物,其特征在于,水溶性高分子物质是羧甲基纤维素钠、聚乙烯吡咯烷酮和羟丙甲基纤维素的组合物;水不溶性高分子物质是低取代羟丙基纤维素;糖类是蔗糖。
4.根据权利要求1-3任一项所述的罗红霉素缓释药物组合物,其特征在于,所述的药物组合物含有100~300mg罗红霉素。
5.根据权利要求4所述的罗红霉素缓释药物组合物,其特征在于,所述的药物组合物含有150~300mg罗红霉素。
6.根据权利要求1-3任一项所述的罗红霉素缓释药物组合物,其特征在于,所述的药物组合物向患者每天给药一次。
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| CN1385164A (zh) * | 2002-05-20 | 2002-12-18 | 广州贝氏药业有限公司 | 罗红霉素缓释胶囊及制备方法 |
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| EP1302205A1 (en) * | 2001-10-01 | 2003-04-16 | Ind-Swift Limited | Controlled release formulations of macrolide citrate salts |
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