CN111728972B - 一种甲硝唑维b6组合物 - Google Patents
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- LXNHXLLTXMVWPM-UHFFFAOYSA-N pyridoxine Chemical compound CC1=NC=C(CO)C(CO)=C1O LXNHXLLTXMVWPM-UHFFFAOYSA-N 0.000 title claims abstract description 42
- VAOCPAMSLUNLGC-UHFFFAOYSA-N metronidazole Chemical compound CC1=NC=C([N+]([O-])=O)N1CCO VAOCPAMSLUNLGC-UHFFFAOYSA-N 0.000 title claims abstract description 34
- RADKZDMFGJYCBB-UHFFFAOYSA-N pyridoxal hydrochloride Natural products CC1=NC=C(CO)C(C=O)=C1O RADKZDMFGJYCBB-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000011726 vitamin B6 Substances 0.000 title claims abstract description 27
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Abstract
本发明涉及一种甲硝唑维B6组合物,属于制药技术领域。本发明所述甲硝唑维B6复方片组合物,单位剂量的组合物中含有:甲硝唑维200mg,维B6 20mg,枸橼酸钠7‑16mg,预胶化淀粉60‑100mg,气相二氧化硅40‑80mg,聚维酮K30 8‑15mg,羟丙纤维素的加入量为聚维酮K30的0.8‑1.6倍。本发明提供了一种稳定的甲硝唑维B6复方片组合物,为临床提供了质量优秀的药品。
Description
技术领域
本发明涉及一种甲硝唑维B6组合物,属于制药技术领域。
背景技术
甲硝唑是一种抗感染药品。用于各种厌氧菌感染:如败血病、心内膜炎、脓胸、肺脓肿、腹腔感染、妇科感染、骨和关节感染、牙周感染等病症,具有广阔的临床用途。但因甲硝唑服用后,会有15%-30%的患者出现消化系统的恶心、呕吐、食欲不振、腹痛等症状;影响临床使用的顺应性,一些患者因不良反应问题不愿意继续服用该药品,尤其是有浅表性胃炎的患者非常抗拒用甲硝唑治疗相关病症。
为了解决上述严重的不良反应,申请人注册申报了甲硝唑VB6复方片,并获得了生产批件,该药的面世,解决了患者服用甲硝唑片后出现的消化系统的恶心、呕吐等问题,获得了患者和医疗服务工作者的认可,成为治疗厌氧菌的一线药物。研发过程中发现,如果处方组成不当,复方制剂中甲硝唑溶出会随时间的延长而降低,同时甲硝唑有关物质呈升高趋势的情况,影响药物的临床使用效果。。
发明内容
发明目的:提供一种稳定、质量优异的甲硝唑VB6复方片及生产工艺,提高生产合格率。
研究中发现,一定量枸橼酸钠的加人,能够避免甲硝唑维B6复方制剂在存储中出现的降解问题。
本发明的技术方案是:
一种甲硝唑维B6复方片组合物,单位剂量的组合物中含有:甲硝唑维200mg,维B620mg,枸橼酸钠7-16mg,预胶化淀粉60-100mg,气相二氧化硅40-80mg,聚维酮K30 8-15mg,羟丙纤维素的加入量为聚维酮K30的0.8-1.6倍。
本发明技术方案中, 聚维酮K30 与羟丙纤维素两种粘合剂的联合使用,解决了存放过程中甲硝唑溶出降低的问题,分析认为可能是两种粘合剂的联合作用,给片剂保持了一定的硬度并形成一定的保护膜,避免了复方片中维B6易吸湿、及光不稳定等问题。
羟丙纤维素的加入量如果低于聚维酮K30的0.8倍,不能解决存放过程中甲硝唑溶出降低的问题。羟丙纤维素的加入量如果低于聚维酮K30的2倍,会影响甲硝唑的溶出度,估计是粘合剂加入量过高,影响活性成分的溶出。
本发明技术方案中,适量枸橼酸钠的引入,解决了甲硝唑VB6复方片存放过程中的甲硝唑有关物质稳定性问题。
优选的,本发明所述甲硝唑维B6复方片组合物,单位剂量的组合物中含有:甲硝唑维200mg,维B6 20mg,枸橼酸钠10-15mg,预胶化淀粉70-88mg,气相二氧化硅47-70mg,聚维酮K30 10-14mg,羟丙纤维素的加入量为聚维酮K30的1.0-1.4倍。
优选的,本发明所述甲硝唑维B6复方片组合物,单位剂量的组合物中含有:甲硝唑200mg,维B6 20mg,枸橼酸钠12-14mg,预胶化淀粉76-85mg,气相二氧化硅52-66mg,聚维酮K30 10-14mg,羟丙纤维素的加入量为聚维酮K30的1.15-1.3倍。
本发明所述甲硝唑维B6复方片组合物的制备方法,包括以下步骤:
步骤1. 维B6过100目筛,其他原辅料过80目筛;
步骤2. 用40%乙醇水溶液做溶剂制备粘合剂溶液,首先将处方量的聚维酮K30 溶于40%乙醇水溶液中,制备10%溶液,再加入处方量的羟丙纤维素,搅拌溶解;
步骤3. 处方量的维B6、三分之一处方量的气相二氧化硅、三分之一处方量的预胶化淀粉、二分之一处方量的枸橼酸钠混合均匀,置于制粒机中,喷入三分之一的步骤2制备的粘合剂溶液,制粒;
步骤4. 步骤3所得,加入处方量的甲硝唑维、剩余量的枸橼酸钠、预胶化淀粉、气相二氧化硅、枸橼酸钠混合均匀,喷入剩余量的粘合剂溶液,制粒,整粒;
步骤5. 压片。
本发明所述制备方法,分步骤制粒可以解决维B6的含量均匀性问题。
有益效果:本发明提供了一种稳定的甲硝唑维B6复方片组合物,为临床提供了质量优秀的药品。
实施例1. 甲硝唑维200g,维B6 20g,枸橼酸钠7g,预胶化淀粉100g,气相二氧化硅40g,聚维酮K30 8g,羟丙纤维素12.8g,按技术方案所述制备方法制备1000片。
实施例2. 甲硝唑维200g,维B6 20g,枸橼酸钠16g,预胶化淀粉60g,气相二氧化硅80g,聚维酮K30 15g,羟丙纤维素12g,按技术方案所述制备方法制备1000片。
实施例3.甲硝唑维200g,维B6 20g,枸橼酸钠12g,预胶化淀粉76g,气相二氧化硅52g,聚维酮K30 14mg,羟丙纤维素15.4g,按技术方案所述制备方法制备1000片。
实施例4.甲硝唑维200g,维B6 20g,枸橼酸14g,预胶化淀粉85g,气相二氧化硅66g,聚维酮K30 10g,羟丙纤维素13g,按技术方案所述制备方法制备1000片。
对照例1.参考实施例3处方和制备方法,取消枸橼酸钠及相应的制备方法相关步骤,其他相同。制备1000片。
对照例2. 参考实施例3处方和制备方法,具体如下:
处方:甲硝唑维200g,维B6 20g,枸橼酸钠12g,预胶化淀粉76g,气相二氧化硅52g,聚维酮K30 14mg,羟丙纤维素7g(羟丙纤维素的加入量为聚维酮K30的0.5倍),按技术方案所述制备方法制备1000片。
对照例3. 参考实施例3处方和制备方法,具体如下:
处方:甲硝唑维200g,维B6 20g,枸橼酸钠12g,预胶化淀粉76g,气相二氧化硅52g,聚维酮K30 14mg,羟丙纤维素28g(羟丙纤维素的加入量为聚维酮K30的2倍),按技术方案所述制备方法制备1000片。
试验例1、根据药典规定的溶出度测定方法(通则0931第一法),分别测定实施例1-4、对照例1-2的溶出度,结果记录于表1。
表1
表1数据说明,实施例1-4产品、对照例1-2产品的溶出度符合药典关于30分钟80%溶出的规定。而对照例3产品溶出度不能符合药典规定,说明羟丙纤维素的加入量为聚维酮K30的2倍时,影响甲硝唑的溶出,所制备的复方片甲硝唑溶出不达标。
试验例2. 分别取实施例1-4、对照例1-2铝塑包装的各100片,置于40℃±2℃/75%±5%RH的恒温恒湿箱中,分别于第0天、第1月、第3月、第5月、第6月末取样检测甲硝唑有关物质、以及维B6含量,数据记录于表2-表3。检测依据,药典和产品标准。
表2 加速试验过程中甲硝唑有关物质检测数据,%
表2数据说明:对照例1产品有关物质呈升高趋势,对照例2产品有关物质略有升高,其他对照例和实施例样品有关物质变化不大或几乎没有变化,说明本发明技术方案中,枸橼酸钠的加入,其他其他辅料的合适配备,获得了非常稳定的效果。
表3 加速试验过程中甲硝唑溶出检测数据,%(为标示量的)
表3数据说明:对照例2产品中甲硝唑溶出随着存放时间的延长,下降趋势明显。其他实施例和对照例变化不大或几乎没有变化,说明本发明技术方案中,合适比例的羟丙纤维素、和聚维酮K30的加入,对产品的稳定性起了积极的作用。
Claims (4)
1.一种甲硝唑维B6复方片组合物,其特征在于,单位剂量的组合物由以下组分组成:甲硝唑200mg,维B6 20mg,枸橼酸钠7-16mg,预胶化淀粉60-100mg,气相二氧化硅40-80mg,聚维酮K30 8-15mg,一定量的羟丙纤维素,其中,羟丙纤维素的加入量为聚维酮K30的0.8-1.6倍。
2.根据权利要求1所述甲硝唑维B6复方片组合物,其特征在于,单位剂量的组合物由以下组分组成:甲硝唑200mg,维B6 20mg,枸橼酸钠10-15mg,预胶化淀粉70-88mg,气相二氧化硅47-70mg,聚维酮K30 10-14mg,一定量的羟丙纤维素,其中,羟丙纤维素的加入量为聚维酮K30的1.0-1.4倍。
3.根据权利要求1所述甲硝唑维B6复方片组合物,其特征在于,单位剂量的组合物由以下组分组成:甲硝唑200mg,维B6 20mg,枸橼酸钠12-14mg,预胶化淀粉76-85mg,气相二氧化硅52-66mg,聚维酮K30 10-14mg,一定量的羟丙纤维素,其中,羟丙纤维素的加入量为聚维酮K30的1.15-1.3倍。
4.权利要求1所述甲硝唑维B6复方片组合物的制备方法,其特征在于,包括以下步骤:
步骤1.维B6过100目筛,其他原辅料过80目筛;
步骤2.用40%乙醇水溶液做溶剂制备粘合剂溶液,首先将处方量的聚维酮K30溶于40%乙醇水溶液中,制备10%溶液,再加入处方量的羟丙纤维素,搅拌溶解;
步骤3.处方量的维B6、三分之一处方量的气相二氧化硅、三分之一处方量的预胶化淀粉、二分之一处方量的枸橼酸钠混合均匀,置于制粒机中,喷入三分之一的步骤2制备的粘合剂溶液,制粒;
步骤4.步骤3所得,加入处方量的甲硝唑维、剩余量的枸橼酸钠、预胶化淀粉、气相二氧化硅、枸橼酸钠混合均匀,喷入剩余量的粘合剂溶液,制粒,整粒;
步骤5.压片。
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