CN104435384B - 一种抗菌消炎缓释片剂 - Google Patents

一种抗菌消炎缓释片剂 Download PDF

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CN104435384B
CN104435384B CN201410705162.5A CN201410705162A CN104435384B CN 104435384 B CN104435384 B CN 104435384B CN 201410705162 A CN201410705162 A CN 201410705162A CN 104435384 B CN104435384 B CN 104435384B
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hypromellose
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肖军平
吴永忠
陈梁
杨伟庆
李小锋
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Jiangxi Puzheng Pharmaceutical Co., Ltd.
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Abstract

本发明属于药物制剂领域,具体涉及一种关于裸花紫珠的抗菌消炎缓释制剂及其制备方法。所述缓释片剂,其由重量百分比为30%~50%的裸花紫珠提取物、15%~35%的骨架材料、10%~40%的填充剂、10%~30%的兼矫味的致孔剂和0.5%~1.5%的润滑剂组成。所述骨架材料优选为羟丙甲纤维素或羟丙甲纤维素、卡波姆和乙基纤维素的混合物,所述混合物中羟丙甲纤维素、卡波姆和乙基纤维素的质量比为10:3~5:1~2。所述填充剂优选为乳糖或微晶纤维素;所述致孔剂优选聚乙二醇;所述润滑剂优选为微粉硅胶。

Description

一种抗菌消炎缓释片剂
技术领域
本发明属于药物制剂领域,具体涉及一种关于裸花紫珠的抗菌消炎缓释制剂及其制备方法。
背景技术
裸花紫珠(CallicarpanudifloraHook.etArn.)为马鞭草科(Verbenaceae)紫珠属植物,主产于我国海南,是一种海南地道药材,我国广东、广西也有分布。目前有研究表明裸花紫珠药材的主要成分为黄酮类、鞣质、萜类、挥发油类等,其中萜类和黄酮能增加血小板的数量,缩短出血和凝血时间,对纤溶***具有显著的抑制作用,收缩血管、止血效果显著,对炎症早期的渗出、肿胀有明显的抑制作用,加快创面渗出的吸收,促进伤口的愈合,对金黄色葡萄球菌、伤寒沙门氏菌、肺炎双球菌、绿脓杆菌等均有较强的抑菌作用;而鞣质能使创面的微血管收缩,具有局部止血作用。临床上常用于治疗细菌感染引起的炎症,急性传染性肝炎,消化道出血等疾病。
目前裸花紫珠的剂型有普通片剂及胶囊,并已经列入了国家药品部颁标准。但普通制剂给药频繁,需日服3次,每次2~3片,病人顺应性较差,且血药浓度波动大,长期给药易引发不良反应。
缓释制剂(sustainedreleasepreparation)是指通过适当的方法,延缓药物在体内的释放、吸收、分布、代谢和***等过程,从而达到延长药物作用、减少毒副作用等目的的一类制剂。其可避免普通制剂频繁给药所出现的“峰谷”现象,使药物的安全性、有效性和适应性有所提高。目前由于中药提取物的成分复杂性,中药缓释制剂在制备上存在着辅料筛选困难,成形工艺差和药物释放速度不稳定等技术问题。
发明内容
针对目前的现有技术存在的一系列问题,本发明的一个目的是提供一种释药稳定持久的缓释片剂,其由重量百分比为30%~50%的裸花紫珠提取物、15%~35%的骨架材料、10%~40%的填充剂、10%~30%的兼矫味的致孔剂和0.5%~1.5%的润滑剂组成。
在本发明进一步地实施方案中,所述缓释片剂,其重量比优选为35%~45%的裸花紫珠提取物、20%~30%的骨架材料、20%~30%的填充剂和10%~20%的兼矫味的致孔剂和0.5%的润滑剂组成。
在本发明进一步地实施方案中,所述骨架材料为羟丙甲纤维素、乙基纤维素、醋酸纤维素、卡波姆之一或它们的混合物。所述填充剂为微晶纤维素、乳糖、磷酸氢钙、淀粉或它们的混合物。所述致孔剂为甘露醇、山梨醇、聚乙二醇或葡萄糖。所述润滑剂为滑石粉、微粉硅胶或硬脂酸镁。
在本发明更进一步地实施方案中,所述骨架材料优选为羟丙甲纤维素或羟丙甲纤维素、卡波姆和乙基纤维素的混合物,所述羟丙甲纤维素的型号可以为K4M、K15M或K100M,优选为K4M或K4M和K100M的混合物,在K4M和K100M的混合物中K4M:K100M为9:1。所述卡波姆型号优选为971P。所述混合物中羟丙甲纤维素、卡波姆和乙基纤维素的质量比为10:3~5:1~2,优选为10:4:1.5。所述填充剂优选为乳糖或微晶纤维素;所述致孔剂优选聚乙二醇,更优选为聚乙二醇4000;所述润滑剂优选为微粉硅胶。
在本发明中,所述裸花紫珠提取物可用现有技术获得,例如,专利文献CN102205000A公开的裸花紫珠提取物的制备方法,但不限于此方法。
本发明的另一个目的是提供一种制备上述缓释制剂的方法,向裸花紫珠提取物加入相应配比的骨架材料、填充剂和致孔剂混匀,喷入适量乙醇或乙醇水溶液进行湿法制粒,干燥,整粒,加入润滑剂混匀,压片即得。
在进一步地实施方案中,所述乙醇水溶液优选为60%乙醇溶液。
本发明针对裸花紫珠提取物的相关特点,选择合适的相关辅料,从而获得了一种成型工艺好、稳定性佳及药物释放速度稳定的裸花紫珠缓释制剂。
附图说明
附图1:大鼠口服实施例1-5制备的缓释片剂后的血药浓度
具体实施方式
下面将通过举例进一步的详细说明本发明。需要指出的是,以下说明仅仅是对本发明要求保护的技术方案的举例说明,并非对这些技术方案的任何限制。本发明的保护范围以所附权利要求书记载的内容为准。
实施例1
采用专利文献CN102205000A公开的制备方法制备裸花紫珠提取物,以下均同。
具体方法如下:1)裸花紫珠粉碎药材用7-9倍量浓度为70-90%乙醇浸泡60-90min,后用超声波提取器提取30-50min,然后过滤,滤渣再加入3-5倍量浓度为70-90%乙醇浸泡60-90min,后用超声波提取器提取15-25min,过滤并合并两次滤液,回收滤液中的乙醇得浸膏①;
2)上述乙醇提取过的滤渣再以8-12倍量水为溶剂,用超声波提取器提取30-50min,之后过滤,水提取液经减压浓缩后得浸膏②;
3)合并浸膏①和浸膏②,真空下浓缩成稠膏,将稠膏烘干至水分在5%以下,得裸花紫珠提取物。
喷入适量乙醇水溶液(60%)进行湿法制粒,干燥,整粒,加入润滑剂硬脂酸镁50g混匀,压片即得。
实施例2
工艺同实施例1。
实施例3
工艺同实施例1。
实施例4
工艺同实施例1。
实施例5
工艺同实施例1。
实施例6重量差异及脆碎度检查
根据片剂重量差异检查法(中国药典2010版附录IA)的有关规定,确定本品的重量差异限度。结果如下:
平均片重(g) 差异度(%)
实施例1 0.301 ±3.6
实施例2 0.313 ±1.5
实施例3 0.308 ±1.3
实施例4 0.305 ±3.9
实施例5 0.311 ±2.2
根据片剂脆碎度检查法(中国药典2010版附录XG),将缓释片放入圆筒中转动100次,取出精密称重,观察缓释片外观。
脆碎度(%) 外观
实施例1 0.5 未检出断裂、龟裂及粉碎的片
实施例2 0.2 未检出断裂、龟裂及粉碎的片
实施例3 0.1 未检出断裂、龟裂及粉碎的片
实施例4 0.4 未检出断裂、龟裂及粉碎的片
实施例5 0.3 未检出断裂、龟裂及粉碎的片
实施例7缓释片体外释放度试验
释放介质为模仿人体胃肠道环境(2h前为0.1mol/L盐酸,2h后为pH6.8的PBS缓冲液),分别考察各实施例制备的缓释片剂的释放度。
释放度考察方法:首先通过HPLC测定缓释片中熊果酸和木犀草素的含量,再将同批号缓释片放入释放介质中考察释放度。
结果如下:
实施例1
实施例2
实施例3
实施例4
实施例5
实施例8缓释片在大鼠体内释放度研究
参照非专利文献:大鼠口服裸花紫珠后木犀草素的体内药动学研究,李玲娜等,海南医学院学报,2012.对实施例1-5制备的缓释片进行药代动力学研究(给药剂量均为500mg/kg)。具体结果参见附图1。
从附图中结果可以看出,实施例1、4和5制备的缓释片剂中在释药过程中不是十分稳定,有明显的突释现象发生,而实施例2和3制备的缓释片剂释药速度较为平稳,在24小时后血中仍可检测到明显的木犀草素含量(2-3μg/ml)。
本发明内容仅仅举例说明了要求保护的一些具体实施方案,其中一个或更多个技术方案中所记载的技术特征可以与任意的一个或多个技术方案相组合,这些经组合而得到的技术方案也在本申请保护范围内,就像这些经组合而得到的技术方案已经在本发明公开内容中具体记载一样。

Claims (1)

1.一种抗菌消炎的缓释片剂,其特征在于,其由400g的裸花紫珠提取物、145g的羟丙甲纤维素K4M、16g的羟丙甲纤维素K100M、65g的卡波姆971P、24g的乙基纤维素、200g的微晶纤维素、100g的聚乙二醇4000和50g的微粉硅胶制成。
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