CN111973569A - 含有硝基咪唑类衍生物的药物组合物及其制备方法 - Google Patents
含有硝基咪唑类衍生物的药物组合物及其制备方法 Download PDFInfo
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- CN111973569A CN111973569A CN202010436712.3A CN202010436712A CN111973569A CN 111973569 A CN111973569 A CN 111973569A CN 202010436712 A CN202010436712 A CN 202010436712A CN 111973569 A CN111973569 A CN 111973569A
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- sodium
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- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims description 4
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Abstract
本发明涉及含有硝基咪唑类衍生物的药物组合物及其制备方法,所述药物组合物包含式I化合物,其异构体、水合物,或其药学上可接受的盐,或它们的组合作为活性成分,以及至少一种药学上可接受的辅料,该组合物具有良好的稳定性和药物溶出度,产品质量可控,制备方法工艺简单、可操作性强、重现性良好、适宜大规模工业化生产。
Description
技术领域
本发明属于药物制剂领域,具体涉及一种包含硝基咪唑类衍生物的药物组合物及其制备方法。
背景技术
硝基咪唑类抗菌药物,市场销售的传统药物主要有甲硝唑、奥硝唑、塞克硝唑等,特别是甲硝唑作为杀菌剂,其抗厌氧菌谱广,对脆弱拟杆菌、真杆菌、产气荚膜梭菌高度敏感,对消化球菌、消化链球菌、产黑素普雷活菌中度敏感,对无芽孢格兰阳性杆菌敏感性较差。
吗啉硝唑,作为第三代硝基咪唑类衍生物,是豪森公司开发的1.1类新药。该药毒性小,活性好,抗厌氧菌、抗滴虫、抗阿米巴原虫,尤其适用于敏感细菌引起的成人(≥18岁)下列感染:
l、妇科盆腔炎(包括子宫内膜炎、输卵管炎、输卵管卵巢脓肿、盆腔腹膜炎等):由消化链球菌、脆弱拟杆菌、韦荣球菌、吉氏拟杆菌等引起。
2、联合手术治疗化脓性阑尾炎、坏疽性阑尾炎:由拟杆菌属(脆弱拟杆菌、卵形/多型拟杆菌、单形拟杆菌、普通拟杆菌、拟杆菌属),梭菌属(产气荚膜梭菌、双酶梭菌、丁酸梭菌及其他梭菌),梭杆菌属(具核梭杆菌、可变梭杆菌),厌氧球菌(消化链球菌、韦荣球菌)等引起。
目前,吗啉硝唑上市的剂型仅为注射剂,市场上需要口服药物以满足临场和市场上的需求。
发明内容
本发明提供一种包含硝基咪唑类衍生物的药物组合物。
该药物组合物包含1-[3-(4-吗啉基)-2-羟丙基]-2-甲基-5-硝基-1H-咪唑、其多晶型物、溶剂合物、水合物、药学上可接受的盐或它们的组合作为活性成分,以及至少一种药学上可接受的辅料。
根据本发明的药物组合物,所述活性成分的含量为30~90%,优选50~85%。
根据本发明的药物组合物,所述活性成分的单位剂量为100~1000mg,优选250~500mg,更优选250mg和500mg。
根据本发明的药物组合物,所述辅料选自填充剂、崩解剂、粘合剂、表面活性剂或润滑剂。
根据本发明的药物组合物,所述辅料还包含抗氧剂。
根据本发明的药物组合物,所述抗氧剂为亚硫酸钠、亚硫酸氢钠、焦亚硫酸钠、硫代硫酸钠、连二硫酸钠、L-维生素C、D-维生素C、维生素C、棕榈酸酯、维生素E、L-半胱氨酸、L-甲硫氨酸、L-赖氨酸、L-精氨酸、L-亮氨酸、L-色氨酸、L-谷胱甘肽、L-异亮氨酸、丙氨酸、精氨酸、甲硫氨酸、二硫代苏糖醇、硫代甘油、硫脲、2-巯基乙醇、1-硫代山梨醇、硫代苹果酸、依地酸二钠、依地酸钙钠、亚甲蓝、枸橼酸钠、枸橼酸钾、盐酸吡哆醇、木糖醇、卵磷脂、酒石酸、硫酸氧化喹啉、抗坏血酸钠;更优选硫代硫酸钠、焦亚硫酸钠、维生素C、L-甲硫氨酸、L-赖氨酸、L-色氨酸、硫脲,进一步优选硫代硫酸钠和维生素C。其中,抗氧剂的含量为0.1~2%,优选0.5~2%。
根据本发明的药物组合物,所述填充剂还包括葡聚糖、淀粉、纤维素、乳糖、麦芽糖、蔗糖、微晶纤维素、甘露醇、山梨醇、磷酸氢钙或硫酸钙中的一种或多种。其中,填充剂的含量为1~50%,优选5~30%,更优选10~25%,进一步优选10~20%。
优选地,填充剂选自微晶纤维素和乳糖,其中所述微晶纤维素的含量为1~60%,优选5~30%,更优选10~20%;所述乳糖的含量为0.5~25%,优选1~15%,更优选1~5%。
更优选地,微晶纤维素与乳糖的重量比为10:1~10:1,优选1:1~10:1,更优选3:1~7:1,最优选5:1。
根据本发明的药物组合物,所述崩解剂选自低取代羟丙基纤维素、交联羧甲基纤维素钠、羧甲淀粉钠或交联聚维酮中的一种或多种,优选交联羧甲基纤维素钠。其中,所述崩解剂的含量为0.5~20%,优选1~10%。
根据本发明的药物组合物,所述崩解剂通过内加或外加的方式加入。
根据本发明的药物组合物,所述粘合剂选自羟丙甲纤维素、羟丙纤维素、聚维酮、甲基纤维素、羧甲基纤维素钠、聚乙烯吡咯烷酮或聚乙二醇的至少一种,优选聚乙烯吡咯烷酮或聚维酮的至少一种。其中,粘合剂的含量为1~30%,优选1~20%,更优选1~10%。
根据本发明的药物组合物,所述润滑剂选自滑石粉、二氧化硅、硬脂酸、硬脂富马酸钠、山嵛酸甘油酯、硬脂酸镁或微粉硅胶中的一种或多种,优选硬脂富马酸钠或硬脂酸镁。其中,润滑剂的含量为0.1~10%,优选0.5~5%。
根据本发明的药物组合物,所述表面活性剂为十二烷基硫酸钠、吐温80或泊洛沙姆188,优选十二烷基硫酸钠。其中,表面活性剂的含量为0~10%,优选0~5%。
根据本发明的药物组合物,各组分的重量百分比如下:
任选地,还包含抗氧剂,抗氧剂的含量为0.1-2%。
优选的,各组分的重量百分比如下:
任选地,还包含抗氧剂,抗氧剂的含量为0.5-2%。
更优选地,各组分的重量百分比如下:
任选地,还包含抗氧剂,抗氧剂的含量为0.5-1.5%。
最优选地,各组分的重量百分比如下:
根据本发明的药物组合物,所述含量是指占药物总重量的百分比,所述药物总重量不包括包衣的重量,对于具体剂型而言,如占片芯或颗粒的重量。
根据本发明的药物组合物,包含以下组分:
根据本发明的药物组合物,包含以下组分:
根据本发明的药物组合物,包含以下组分:
优选地,包含以下组分:
优选地,包含以下组分:
优选地,包含以下组分:
更优选地,包含以下组分:
最优选地,包含以下组分:
本发明的药物组合物为口服制剂,选自片剂或胶囊剂。
本发明进一步还提供一种药物组合物的制备方法,主要包括以下步骤:
1)原辅料预处理:将填充剂过筛备用;
2)配制:将粘合剂配制为粘合剂溶液;
3)制粒:将处方量活性成分、填充剂、崩解剂、表面活性剂混合,任选还包含抗氧剂,加入粘合剂制粒、干燥、整粒;
4)总混:将制得的颗粒以及润滑剂混合;
5)任选地,压片;
6)任选地,包衣。
优选地,上述制备方法的具体步骤包括:
1)原辅料预处理:将乳糖过筛,备用;
2)配制:取处方量水,加入聚乙烯吡咯烷酮,配制为5%~20%的溶液;
3)湿法制粒:按处方量称量活性成分、微晶纤维素、乳糖、交联羧甲基纤维素钠,任选还包含抗氧剂,与粘合剂溶液混合制粒、干燥、整粒;
4)总混:将制得的颗粒与硬脂酸镁混合;
5)任选地,压片;
6)任选地,包衣:i)配制包衣液,向纯化水中边搅拌边加入处方量的欧巴代配成固含量为10%的包衣液,搅拌均匀、过筛,备用;ii)待包衣增重达约2.0%~4.0%时结束包衣;
7)任选地,包衣:i)配制包衣液,向纯化水中边搅拌边加入处方量的欧巴代配成固含量为10%的包衣液,搅拌均匀、过筛,备用;ii)待包衣增重达约1.0%~5.0%时结束包衣。
包衣选择速释薄膜包衣,如欧巴代,包衣配方包含成膜材料,如羟丙甲纤维素、羟丙基纤维素;或者遮光剂,如二氧化钛、和/或色淀,如氧化铁红、氧化铁黄;和/或增塑剂,如丙二醇、PEG等。
发明人通过大量的研究发现,本发明制备的吗啉硝唑药物组合物,在不同的溶出介质下均有很好的溶出,并且溶出一致,同时稳定性优异。
具体实施方式
填充剂筛选:
通过表1可以发现,当填充剂包含乳糖时,药物组合物可压性好。
表1填充剂筛选
注:单位为g,下同
崩解剂筛选:
表2崩解剂考察及溶出数据
粘合剂筛选:
表3粘合剂考察及溶出数据
实施例1
吗啉硝唑药物组合物(1000片):包含500g的活性成分,100g的微晶纤维素(PH101),20g的乳糖,25g的聚乙烯吡咯烷酮(K-90),225g纯化水,18g交联羧甲基纤维素钠(SD711),7g硬脂酸镁,处方如下:
(1)辅料预处理
物料名称 | 处理方式 |
乳糖 | 过60目筛 |
吗啉硝唑 | 过80目筛 |
(2)称量
按配料核料单量称取原辅料。
(3)制粒
1)配制粘合剂溶液
将处方量纯化水加入配料桶中,加入处方量聚乙烯吡咯烷酮,搅拌直至溶解,再静置40分钟。
2)预混
按处方量称量吗啉硝唑、微晶纤维素、乳糖、交联羧甲基纤维素钠加入到湿法混合制粒机中,搅拌桨转速120rpm,混合10分钟。
3)制粒
将处方量粘合剂加入湿法混合制粒机中,继续搅拌制粒,制粒结束后出料。
4)干燥
将湿颗粒装入沸腾微丸包衣机内,启动沸腾微丸包衣机,设定进风温度50℃,控制干燥失重在2.00~4.00%范围内时,干燥结束,出料。
5)整粒
将干燥后的颗粒加至多功能整粒机,启动机器,设定旋转刀转速范围300-520rpm。
(4)总混
将整粒后干颗粒、硬脂酸镁加入料斗混合机中,设定转速15rpm,混合时间10分钟。
(5)压片
根据颗粒含量计算应压片重,调整片重、硬度合格后正式压片。
(6)包装
用铝塑包装。
实施例2
吗啉硝唑药物组合物(2000片):包含500g的活性成分,100g的微晶纤维素(PH101),20g的乳糖,25g的聚乙烯吡咯烷酮(K-90),225g纯化水,18g交联羧甲基纤维素钠(SD711),7g硬脂酸镁,处方如下:
吗啉硝唑 | 74.6% |
微晶纤维素 | 15.0% |
乳糖 | 3.0% |
聚乙烯吡咯烷酮 | 3.7% |
交联羧甲基纤维素钠 | 2.7% |
硬脂酸镁 | 1.0% |
包含上述组分的片剂,制备方法同实施例1。
实施例3
吗啉硝唑药物组合物(5000片):包含500g的活性成分,100g的微晶纤维素(PH101),20g的乳糖,25g的聚乙烯吡咯烷酮(K-90),225g纯化水,18g交联羧甲基纤维素钠(SD711),7g硬脂酸镁,处方如下:
吗啉硝唑 | 74.6% |
微晶纤维素 | 15.0% |
乳糖 | 3.0% |
聚乙烯吡咯烷酮 | 3.7% |
交联羧甲基纤维素钠 | 2.7% |
硬脂酸镁 | 1.0% |
包含上述组分的片剂,制备方法同实施例1。
实施例4
吗啉硝唑药物组合物(1000片):包含500g的活性成分,200g的微晶纤维素(PH101),50g的乳糖,25g的聚乙烯吡咯烷酮(K-90),225g纯化水,20g交联羧甲基纤维素钠(SD711),10g硬脂酸镁,处方如下:
吗啉硝唑 | 62.1% |
微晶纤维素 | 24.8% |
乳糖 | 6.2% |
聚乙烯吡咯烷酮 | 3.1% |
交联羧甲基纤维素钠 | 2.5% |
硬脂酸镁 | 1.2% |
包含上述组分的片剂,制备方法同实施例1。
实施例5
吗啉硝唑药物组合物(1000片):包含250g的活性成分,120g的微晶纤维素(PH101),40g的乳糖,40g的聚乙烯吡咯烷酮(K-90),400g纯化水,20g交联羧甲基纤维素钠(SD711),10g硬脂酸镁,处方如下:
吗啉硝唑 | 52.1% |
微晶纤维素 | 25.0% |
乳糖 | 8.3% |
聚乙烯吡咯烷酮 | 8.3% |
交联羧甲基纤维素钠 | 4.2% |
硬脂酸镁 | 2.1% |
包含上述组分的片剂,制备方法同实施例1。
实施例6
吗啉硝唑药物组合物(1000片):包含500g的活性成分,80g的微晶纤维素(PH101),20g的乳糖,30g的聚乙烯吡咯烷酮(K-90),325g纯化水,30g交联羧甲基纤维素钠(SD711),10g硬脂酸镁,处方如下:
吗啉硝唑 | 74.6% |
微晶纤维素 | 11.9% |
乳糖 | 3.0% |
聚乙烯吡咯烷酮 | 4.5% |
交联羧甲基纤维素钠 | 4.5% |
硬脂酸镁 | 1.5% |
包含上述组分的片剂,制备方法同实施例1。
实施例7
吗啉硝唑药物组合物(1000片):包含250g的活性成分,100g的微晶纤维素(PH101),20g的乳糖,30g的聚乙烯吡咯烷酮(K-90),325g纯化水,40g交联羧甲基纤维素钠(SD711),10g硬脂酸镁,处方如下:
吗啉硝唑 | 55.6% |
微晶纤维素 | 22.2% |
乳糖 | 4.4% |
聚乙烯吡咯烷酮 | 6.7% |
交联羧甲基纤维素钠 | 8.9% |
硬脂酸镁 | 2.2% |
包含上述组分的片剂,制备方法同实施例1。
实施例8
吗啉硝唑药物组合物(1000片):包含500g的活性成分,80g的微晶纤维素(PH101),20g的乳糖,25g的聚乙烯吡咯烷酮(K-90),225g纯化水,18g交联羧甲基纤维素钠(SD711),5g硬脂酸镁,处方如下:
包含上述组分的片剂,制备方法同实施例1。
实施例9
吗啉硝唑药物组合物(1000片):包含500g的活性成分,100g的微晶纤维素(PH101),20g的甘露醇,25g的聚乙烯吡咯烷酮(K-90),225g纯化水,18g的羧甲基淀粉钠(SD711),7g硬脂酸镁,处方如下:
吗啉硝唑 | 74.6% |
微晶纤维素 | 14.9% |
甘露醇 | 3.0% |
聚乙烯吡咯烷酮 | 3.7% |
羧甲基淀粉钠 | 2.7% |
硬脂酸镁 | 1.0% |
包含上述组分的片剂,制备方法同实施例1。
实施例10
吗啉硝唑药物组合物(1000片):包含500g的活性成分,200g的微晶纤维素(PH101),50g的乳糖,25g的羟丙基纤维素,225g纯化水,20g交联羧甲基纤维素钠(SD711),10g硬脂酸镁,处方如下:
吗啉硝唑 | 62.1% |
微晶纤维素 | 24.8% |
乳糖 | 6.2% |
羟丙基纤维素 | 3.1% |
交联羧甲基纤维素钠 | 2.5% |
硬脂酸镁 | 1.2% |
包含上述组分的片剂,制备方法同实施例1。
实施例11
吗啉硝唑药物组合物(2000片):包含500g的活性成分,80g的微晶纤维素(PH101),20g的乳糖,25g的聚乙烯吡咯烷酮(K-90),225g纯化水,18g交联羧甲基纤维素钠(SD711),7.5g硫代硫酸钠,5g硬脂酸镁,处方如下:
吗啉硝唑 | 76.3% |
微晶纤维素 | 12.2% |
乳糖 | 3.1% |
聚乙烯吡咯烷酮 | 3.8% |
交联羧甲基纤维素钠 | 2.7% |
硫代硫酸钠 | 1.1% |
硬脂酸镁 | 0.8% |
包含上述组分的片剂,制备方法同实施例1。
试验例一:稳定性检测及结果分析
1.溶液稳定性考察
表4产品在不同介质中的稳定性考察结果
以实施例1制备的片剂为例,研究了其在0.1mol/L盐酸溶液、pH4.5醋酸盐缓冲液、pH6.8磷酸盐缓冲液和水的溶液稳定性。
结果表明,本发明制备的片剂在0.1mol/L盐酸溶液、pH4.5醋酸盐缓冲液、pH6.8磷酸盐缓冲液和水中24小时内均稳定。
2.影响因素考察
色谱条件:
仪器与试剂高效液相色谱仪、电子分析天平、磷酸二氢钾(色谱纯)、乙腈(色谱纯)、甲醇(色谱纯)、有关物质系统适用性对照品
色谱条件十八烷基硅烷键合硅胶为填充剂,流速:1.0ml/min;检测波长为319nm,20μl。
流动相0.05mol/L磷酸盐缓冲液(取6.8g磷酸二氢钾,加水约900ml溶解后,用三乙胺调节pH值至7.0,再加水至1000ml,混合均匀,过滤,脱气)-乙腈-甲醇(80:10:10)。
表5影响因素试验考察结果(考察条件:40℃)
注:杂质A的RRT为0.33,结构如下:
表6影响因素试验考察结果(考察条件:60℃)
表7影响因素试验考察结果(考察条件:25℃RH75%)
表8影响因素试验考察结果(考察条件:25℃RH92.5%)
表9影响因素试验考察结果
(考察条件:总照度不低于1.2×106Lux·hr、近紫外能量不低于200w·hr/m2)
参见表5-9,影响因素试验考察30天结果表明,本品在各个条件下,各项质量指标没有明显变化,样品稳定性良好。
3.长期稳定性
表10稳定性过程中产品质量考察结果(实施例1产品)
表11稳定性过程中产品质量考察结果(实施例2产品)
结合表10-11的内容可知,本发明所制备片剂质量优良,稳定性考察过程中产品质量稳定,本品处方及工艺稳定,重现性良好。
其余实施例3-10制备的样品均具有与实施例1和2类似的稳定性效果。
表12影响因素试验考察结果(实施例11产品)
(考察条件:总照度不低于1.2×106Lux·hr、近紫外能量不低于200w·hr/m2)
溶出检测及结果分析
分别选择900mL的0.1mol/L盐酸溶液、pH=4.5的醋酸盐缓冲液、pH=6.8的磷酸盐缓冲液以及水为溶出介质对样品溶出曲线进行考察。
1.随机抽取实施例1制备的产品中的6个样品进行检测,结果如表13~16所示。
表13产品在0.1M盐酸介质溶出曲线
表14产品在醋酸盐介质溶出曲线
表15产品在磷酸盐介质溶出曲线
表16产品在水介质溶出曲线
结果表明,本发明制备的产品在不同介质中均具有良好的溶出度。
2.对实施例2产品的不同批次进行考察,研究批间溶出均一性。
表17不同介质中产品的溶出数据(实施例2产品)
结果表明,本发明制备的产品批间溶出度一致。
其余实施例制备的样品具有与实施例1和2类似的溶出特性。
Claims (19)
2.根据权利要求1所述的药物组合物,其特征在于,所述活性成分的含量为30~90%,优选50~85%。
3.根据权利要求1所述的药物组合物,其特征在于,所述活性成分的单位剂量为100~1000mg,优选250~500mg,更优选250mg和500mg。
4.根据权利要求1所述的药物组合物,其特征在于,所述辅料选自填充剂、崩解剂、粘合剂、表面活性剂或润滑剂。
5.根据权利要求1所述的药物组合物,其特征在于,所述辅料还可以包含抗氧剂,优选地,所述抗氧剂为亚硫酸钠、亚硫酸氢钠、焦亚硫酸钠、硫代硫酸钠、连二硫酸钠、L-维生素C、D-维生素C、维生素C、棕榈酸酯、维生素E、L-半胱氨酸、L-甲硫氨酸、L-赖氨酸、L-精氨酸、L-亮氨酸、L-色氨酸、L-谷胱甘肽、L-异亮氨酸、丙氨酸、精氨酸、甲硫氨酸、二硫代苏糖醇、硫代甘油、硫脲、2-巯基乙醇、1-硫代山梨醇、硫代苹果酸、依地酸二钠、依地酸钙钠、亚甲蓝、枸橼酸钠、枸橼酸钾、盐酸吡哆醇、木糖醇、卵磷脂、酒石酸、硫酸氧化喹啉或抗坏血酸钠;更优选硫代硫酸钠、焦亚硫酸钠、维生素C、L-甲硫氨酸、L-赖氨酸、L-色氨酸或硫脲,进一步优选硫代硫酸钠或维生素C;
优选地,所述抗氧剂的含量0.1~2%,优选0.5~2%。
6.根据权利要求4所述的药物组合物,其特征在于,所述填充剂还包括葡聚糖、淀粉、纤维素、乳糖、麦芽糖、蔗糖、微晶纤维素、甘露醇、山梨醇、磷酸氢钙或硫酸钙中的一种或多种,优选微晶纤维素或乳糖;
更优选地,所述填充剂的含量为1~50%,优选5~30%,更优选10~25%,进一步优选10~20%。
7.根据权利要求4所述的药物组合物,其特征在于,所述填充剂选自微晶纤维素和乳糖;
优选地,所述微晶纤维素的含量为1~60%,优选5~30%,更优选10~20%;所述乳糖的含量为0.5~25%,优选1~15%,更优选1~5%;
优选地,微晶纤维素与乳糖的重量比为10:1~10:1,更优选1:1~10:1,进一步优选3:1~7:1,最优选5:1。
8.根据权利要求4所述的药物组合物,其特征在于,所述崩解剂选自低取代羟丙基纤维素、交联羧甲基纤维素钠、羧甲淀粉钠或交联聚维酮中的一种或多种,优选交联羧甲基纤维素钠;
优选地,所述崩解剂的含量为0.5~20%,更优选1~10%。
9.根据权利要求4所述的药物组合物,其特征在于,所述崩解剂通过内加或外加的方式加入。
10.根据权利要求4所述的药物组合物,其特征在于,所述粘合剂选自羟丙甲纤维素、羟丙基纤维素、基纤维素、羧甲基纤维素钠、聚乙烯吡咯烷酮或聚乙二醇的至少一种,优选聚乙烯吡咯烷酮;
更优选地,所述粘合剂的含量为1~30%,进一步优选1~20%,最优选1~10%。
11.根据权利要求4所述的药物组合物,其特征在于,所述润滑剂选自滑石粉、二氧化硅、硬脂酸、硬脂富马酸钠、山嵛酸甘油酯、硬脂酸镁或微粉硅胶中的一种或多种,优选硬脂富马酸钠或硬脂酸镁;
优选地,所述润滑剂的含量为0.1~10%,更优选0.5~5%。
12.根据权利要求4所述的药物组合物,其特征在于,所述表面活性剂为十二烷基硫酸钠、吐温80或泊洛沙姆188,优选十二烷基硫酸钠;
更优选地,所述表面活性剂的含量为0~10%,优选0~5%。
17.根据权利要求1所述的药物组合物,其特征在于,所述药物组合物为口服制剂,优选片剂或胶囊剂。
18.一种如权利要求1至17任一项权利要求所述药物组合物的制备方法,其特征在于,包括以下步骤:
1)原辅料预处理:将填充剂过筛备用;
2)配制:将粘合剂配制为粘合剂溶液;
3)制粒:将处方量活性成分、填充剂、崩解剂、表面活性剂混合,任选还包含抗氧剂,加入粘合剂制粒、干燥、整粒;
4)总混:将制得的颗粒以及润滑剂混合;
5)任选地,压片;
6)任选地,包衣。
19.根据权利要求18所述的制备方法,具体步骤包括:
1)原辅料预处理:将乳糖过筛,备用;
2)配制:取处方量水,加入聚乙烯吡咯烷酮,配制为5%~20%的溶液;
3)湿法制粒:按处方量称量活性成分、微晶纤维素、乳糖、交联羧甲基纤维素钠、任选还包含抗氧剂,与粘合剂溶液混合制粒、干燥、整粒;
4)总混:将制得的颗粒与硬脂酸镁混合;
5)任选地,压片;
6)任选地,包衣:i)配制包衣液,向纯化水中边搅拌边加入处方量的欧巴代配成固含量为10%的包衣液,搅拌均匀、过筛,备用;ii)待包衣增重达约2.0%~4.0%时结束包衣;
7)任选地,包衣:i)配制包衣液,向纯化水中边搅拌边加入处方量的欧巴代配成固含量为10%的包衣液,搅拌均匀、过筛,备用;ii)待包衣增重达约1.0%~5.0%时结束包衣。
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