CN114129527B - 一种微型片剂及其制备方法和制剂 - Google Patents
一种微型片剂及其制备方法和制剂 Download PDFInfo
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- CN114129527B CN114129527B CN202111288747.8A CN202111288747A CN114129527B CN 114129527 B CN114129527 B CN 114129527B CN 202111288747 A CN202111288747 A CN 202111288747A CN 114129527 B CN114129527 B CN 114129527B
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- 229960004136 rivastigmine Drugs 0.000 description 1
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- 229960001909 terazosin hydrochloride Drugs 0.000 description 1
- KFVSLSTULZVNPG-UHFFFAOYSA-N terbutaline sulfate Chemical compound [O-]S([O-])(=O)=O.CC(C)(C)[NH2+]CC(O)C1=CC(O)=CC(O)=C1.CC(C)(C)[NH2+]CC(O)C1=CC(O)=CC(O)=C1 KFVSLSTULZVNPG-UHFFFAOYSA-N 0.000 description 1
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- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
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- 239000011691 vitamin B1 Substances 0.000 description 1
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- 239000011579 vitamin B4 Substances 0.000 description 1
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- 235000019166 vitamin D Nutrition 0.000 description 1
- 239000011710 vitamin D Substances 0.000 description 1
- 150000003710 vitamin D derivatives Chemical class 0.000 description 1
- 229940046008 vitamin d Drugs 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 229960001729 voglibose Drugs 0.000 description 1
- 229960002647 warfarin sodium Drugs 0.000 description 1
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Abstract
本发明属于药物技术领域,具体涉及一种微型片剂及其制备方法和制剂。所述微型片剂,组分包括活性成分、填充剂和/或崩解剂,所述微型片剂直径为1‑5mm,片重为1‑50mg。所述制剂中微型片剂的数量为单个或多个。本发明还提供了微型片剂的制备方法。本发明的微型片剂能够实现小剂量直接给药,剂量精确,使用方便,提高用药依从性;本发明的微型片剂有效解决了含量均匀度问题,同时,降低了工艺的复杂度、难度,更适应于工业化生产。
Description
技术领域
本发明属于药物技术领域,具体涉及一种微型片剂及其制备方法和制剂。
背景技术
口服固体制剂由于存在吞咽困难以及无法精细调整固定剂量的劣势,使其无法满足特殊人群用药和高价值专药对于给药方式的需求。作为固体剂型设计的新趋势,微型片剂(mini tablets,微片)的日渐成熟或将改变口服制剂的未来,使其在高价值药品领域占据一席之地。
微片是指直径1-5mm的微型片剂,兼具易吞咽、剂量灵活、可控的释药速率等传统片剂、微丸以及液体制剂所分别包含的优点;微片不仅适用于存在吞咽困难的患者,还能满足专药量身定制的临床需求。
但由于微型片剂在制备过程中存在技术瓶颈。由于辅料性能的限制,无法进一步提高活性成分的占比,而较高的活性成分占比将会面临含量均匀度的难题,并且现有技术中为了解决辅料性能的缺陷,在工艺上进行大幅扩展,使得工艺复杂度、难度均逐渐增加。目前仍没有更好的办法解决。
从压片技术来看,微片压制和普通片的压制其实都是取决于制粒的质量、压片填充控制和压力控制等方面。微片的质量和体积都远远小于普通片,因此相对来说对各方面要求更高一些。主要在小片重小压力的压制,考验的是运动机械的运行精度以及电气元件的灵敏度、响应速度。微片压制除了需要高质量的冲模,更是挑战压片机的整体性能。
从制备技术来看,要保证物料要有良好的流动性、可压性、及粒度分布等,才能确保微片的均一性、成形性。因此对原辅料的各项控制指标要求更高。
本发明旨在提供一种微型片剂及其制备方法,使得部分药品的辅料用量大幅减少,可以根据不同活性成分的理化性质将活性成分占比提高到40-80%,可以避免含量均匀度问题,同时,选用性能较优的辅料从而将工艺的复杂度、难度降低,在生产中更具有优势。
同时,本发明制备的微片在临床使用上有着常规片剂无法替代的优势,能够精准的控制剂量,从而减少用药剂量不准确造成的各类风险,并且微片体积很小,可以满足儿童、老人吞咽困难的问题。
发明内容
为克服以上技术问题,本发明提供了一种微片及其制备方法和制剂。可以解决含量均匀度问题,同时,降低工艺的复杂度、难度,适用于工业推广应用。
为实现以上目的,本发明提供的技术方案如下:
一种微型片剂,所述微型片剂的组分为活性成分和/或辅料,所述微型片剂的直径为1-5mm,片重为1-50mg;所述辅料包括填充剂、崩解剂、粘合剂、润滑剂和助流剂中的任意一种或多种。
优选地,所述微型片剂是指直径为1-3mm,片重为2-30mg。
优选地,所述活性成分的粒径D90≤250μm,优选为D90≤100μm,更优选为D90≤20μm。
优选地,所述活性成分和/或辅料混合后的颗粒粒径为D90≤350μm,优选为D90≤150μm。
优选地,所述填充剂包括淀粉、预胶化淀粉、糖粉、乳糖、乳糖醇、蔗糖、葡萄糖、果糖、糊精、环糊精、粉状纤维素、微晶纤维素、微粉硅胶、甘露醇、山梨醇、木糖醇、赤藓糖醇、木聚糖、麦芽糖醇、甘氨酸、氯化钙、硫酸钙、碳酸钙、磷酸钙、磷酸氢钙、甘油磷酸钙、羧甲基纤维素钙、氯化钠、磷酸淀粉钠、氯化铝、氢氧化铝、硅酸铝、硅酸铝钙和碳酸镁中的任意一种或多种;
所述崩解剂包括淀粉、预胶化淀粉、聚克利林钾、大豆多糖、微晶纤维素、碳酸氢钠、碳酸氢钾、碳酸钾、枸橼酸、海藻酸、海藻酸钠、羧甲淀粉钠、甲基纤维素、低取代羟丙纤维素、交联聚乙烯吡咯烷酮、交联羧甲纤维素钠、羧甲纤维素钠和羧甲纤维素钙中的任意一种或多种;
所述粘合剂包括明胶、阿拉伯胶、黄原胶、西黄蓍胶、聚乙二醇、预胶化淀粉、聚乙烯醇、淀粉、糊精、甲壳素、乳糖、蔗糖、甲壳糖、葡萄糖、葡聚糖、共聚维酮、聚乙烯吡咯烷酮、卡波姆、羟丙纤维素、甲基纤维素、乙基纤维素、乙基甲基纤维素、羟丙甲纤维素、低取代羟丙甲纤维素和羧甲纤维素钠中的任意一种或多种;
所述润滑剂和/或助流剂包括二氧化硅、微粉硅胶、滑石粉、山嵛酸甘油酯、单硬脂酸甘油酯、双硬脂酸甘油酯、蔗糖脂肪酸酯、蔗糖单月桂酸酯、蔗糖单棕榈酸酯、聚乙二醇、月桂醇硫酸钠、多库酯钠、棕榈酸钠、硅酸镁、硅酸铝镁、硬脂酸、硬脂酸钠、硬脂酸钙、硬脂酸锌、硬脂酸镁和硬脂富马酸钠中的任意一种或多种。
优选地,所述崩解剂为多糖和海藻酸的混合物。
优选地,所述崩解剂中多糖和海藻酸的质量比为2-6:1-3。
优选地,所述多糖为岩藻糖、甘露糖、大豆多糖、黑豆粗多糖、银耳多糖、半乳聚糖和葡聚糖醛酸中的任意一种或多种。
优选地,崩解剂为大豆多糖、葡聚糖醛酸和海藻酸的混合物;其中,所述大豆多糖、葡聚糖醛酸和海藻酸的质量比1-5:1:1-3。
优选地,所述填充剂为微晶纤维素、赤藓糖醇、木聚糖和淀粉的混合物。
优选地,所述填充剂中微晶纤维素、赤藓糖醇、木聚糖和淀粉的质量比为3-6:1:1-2:2-5。
优选地,所述淀粉为小麦淀粉、甘薯淀粉、莲藕淀粉、玉米淀粉和木薯粉中的任意一种或多种。
优选地,所述崩解剂为交联羧甲纤维素钠和低取代羟丙纤维素的混合物,和/或羧甲淀粉钠和预胶化淀粉的混合物。
优选地,所述混合物中交联羧甲纤维素钠和低取代羟丙纤维素的质量比为1-4:1,优选为2:1,所述混合物中羧甲淀粉钠和预胶化淀粉的质量比为1-4:1,优选为2:1。
优选地,所述填充剂为微晶纤维素和甘露醇的混合物,和/或微晶纤维素和乳糖的混合物;
优选地,所述混合物中微晶纤维素和甘露醇的质量比为1-4:1,优选为2:1,所述混合物中微晶纤维素和乳糖的质量比为1-4:1,优选为2:1。
优选地,所述微型片剂包括填充剂和崩解剂。
优选地,所述填充剂和崩解剂的质量比为1-2:2-5。
优选地,按照重量份数计,所述微型片剂的组分包括:活性成分0.03-80份、填充剂20-30份、崩解剂3-8份。
优选地,按照重量份数计,所述微型片剂的组分包括:活性成分0.03-50份、填充剂20-30份、崩解剂3-8份。
优选地,所述活性成分为卡托普利、吲达帕胺、盐酸普萘洛尔、富马酸比索洛尔、阿替洛尔、布美他尼、呋塞米、托拉塞米、米诺地尔、苄氟噻嗪、氢氯噻嗪、利血平、地高辛、甲地高辛、硝苯地平、硝酸异山梨酯、单硝酸异山梨酯、戊四硝酯、硝酸甘油、盐酸可乐定、华法林钠、螺内酯、盐酸洛非西定、格列本脲、格列美脲、格列吡嗪、伏格列波糖、阿卡波糖、硫酸氢氯吡格雷、阿司匹林、丁溴东莨菪碱、氢溴酸山莨菪碱、甲氧氯普胺、兰索拉唑、奥美拉唑、奥美拉唑钠、奥美拉唑镁、雷贝拉唑钠、泮托拉唑钠、多潘立酮、法莫替丁、盐酸昂丹司琼、盐酸托烷司琼、马来酸伊索拉定、比沙可啶、盐酸洛哌丁胺、硫酸阿托品、马来酸氯苯那敏、对乙酰氨基酚、布洛芬、金刚烷胺、盐酸丙卡特罗、盐酸班布特罗、富马酸福莫特罗、盐酸克仑特罗、盐酸西替利嗪、盐酸左西替利嗪、盐酸溴己新、盐酸赛庚啶、硫酸沙丁胺醇、硫酸特布他林、氯雷他定、福尔可定、磷酸苯丙哌林、氨茶碱、多索茶碱、盐酸氨溴索、五氟利多、甲钴胺、腺苷钴胺、地西泮、奥沙西泮、氯硝西泮、劳拉西泮、米氮平、奥氮平、阿立哌唑、利培酮、佐米曲普坦、苯巴比妥、氟哌啶醇、盐酸氯丙嗪、盐酸苯海索、盐酸哌甲酯、盐酸托莫西汀、盐酸氯米帕明、盐酸奥西布宁、酒石酸唑吡坦、氯普噻吨、磷酸可待因、盐酸多奈哌齐、重酒石酸卡巴拉汀、盐酸美金刚、卡比多巴、盐酸普拉克索、马来酸咪达唑仑、左甲状腺素钠、卡比马唑、甲巯咪唑、司坦唑醇、地塞米松、氢化可的松、西地碘、阿法骨化醇、盐酸特拉唑嗪、去氨加压素、胰激肽原酶、乌苯美司、依巴斯汀、亚叶酸钙、甲氨蝶呤、白消安、司莫司汀、来氟哌米特、替莫唑胺、磷酸伯氨喹、双氢青蒿素、巴氯芬、磷酸腺嘌呤、司他夫定、呋喃唑酮、利巴韦林、阿德福韦酯、磷酸奥司他韦、环酯红霉素、琥乙红霉素、盐酸小檗碱、叶酸、泛酸钙、碳酸钙、柠檬酸钙、辅酶Q10、维生素B1、维生素B2、维生素B4、维生素B6、维生素C、维生素D2、维生素D3和维生素E中的任一种或多种。
本发明的目的还在于提供所述微型片剂的制备方法,包括以下步骤:将活性成分和/或辅料混合后,制成微型片剂。
优选地,所述制备方法中将所述活性成分进行预处理,所述预处理优选微粉化。
优选地,所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分使用溶剂分散后,喷入填充剂中,干燥,与崩解剂、润滑剂和/或助流剂混合均匀,制成颗粒;
(2)将颗粒制成微型片剂。
优选地,步骤(1)中,所述干燥的方法为喷雾干燥,干燥温度为25-60℃,优选为25-40℃。
优选地,步骤(1)中,所述喷入是指用雾化系统喷雾,控制雾滴粒径为D90≤500μm,优选为D90≤100μm。
优选地,步骤(1)或(2)中,所述颗粒的粒径为D90≤250μm,优选为D90≤150μm。
本发明的目的还在于提供一种微型片剂制剂,所述制剂包括所述的微型片剂,所述制剂中微型片剂的数量为单个或多个。
优选地,所述制剂为片剂、含片、舌下片、口腔贴片、口崩片、咀嚼片、分散片、可溶片、速溶片、泡腾片、阴道片、阴道泡腾片、肠溶片、速释片、缓释片、控释片和植入片中的任一种或多种。
与现有技术比,本发明的技术优势在于:
(1)本发明提供的微型片剂的制备方法,通过对辅料种类的改进,使得部分药品的辅料用量大幅减少,可以根据不同活性成分的理化性质将活性成分占比提高到40-80%,有效解决了含量均匀度问题,同时,降低工艺的复杂度、难度,更适应于工业化生产。
(2)本发明制备的微片在临床使用上有着常规片剂无法替代的优势,能够精准的控制剂量,从而减少用药剂量不准确造成的各类风险,并且微片体积很小,可以满足儿童、老人吞咽困难的问题。
具体实施方式
下面通过具体实施例对本发明进行说明,以使本发明技术方案更易于理解、掌握,但本发明并不局限于此。下述实施例中所述实验方法,如无特殊说明,均为常规方法;所述试剂和材料,如无特殊说明,均可从商业途径获得。
实施例1
一种微型片剂,组成如下表:
表1 实施例1组成
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分微粉化,控制粒径为D90=9.3μm,使用水分散后,雾化系统喷雾喷入填充剂中,控制雾滴粒径为D90=87.6μm;40℃以下喷雾干燥,与崩解剂、润滑剂混合均匀,制成粒径D90=143.1μm的颗粒;
(2)将颗粒制成直径为3mm,片重为20mg的微片。
实施例2
一种微型片剂,组成如下表:
表2 实施例2组成
组分 | 具体成分 | 重量份数 |
活性成分 | 磷酸奥司他韦 | 40 |
填充剂 | 质量比为6:1:2:5的微晶纤维素、赤藓糖醇、木聚糖和小麦淀粉 | 30 |
崩解剂 | 质量比为5:1:3的大豆多糖、葡聚糖醛酸和海藻酸 | 3 |
助流剂 | 硬脂富马酸钠 | 4 |
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分微粉化,控制粒径为D90=43.6μm,使用水分散后,雾化系统喷雾喷入填充剂中,控制雾滴粒径为D90=378.5μm;25℃以下喷雾干燥,与崩解剂、助流剂混合均匀,制成粒径D90=223.7μm的颗粒;
(2)将颗粒制成直径为2mm,片重为10mg的微片。
实施例3
一种微型片剂,组成如下表:
表3 实施例3组成
组分 | 具体成分 | 重量份数 |
活性成分 | 地高辛 | 0.25 |
填充剂 | 质量比为2:1:1:3的微晶纤维素、赤藓糖醇、木聚糖和木薯粉 | 30 |
崩解剂 | 质量比为3:2的甘露糖和海藻酸混合物 | 8 |
润滑剂 | 硅酸铝镁 | 10 |
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分微粉化,控制粒径为D90=17.8μm,使用水分散后,雾化系统喷雾喷入填充剂中,控制雾滴粒径为D90=453.9μm;60℃以下喷雾干燥,与崩解剂、润滑剂混合均匀,制成粒径D90=101.6μm的颗粒;
(2)将颗粒制成直径为3mm,片重为30mg的微片。
实施例4
一种微型片剂,组成如下表:
表4 实施例4组成
组分 | 具体成分 | 重量份数 |
活性成分 | 卡托普利 | 35 |
填充剂 | 质量比为3:1:2:2的微晶纤维素、赤藓糖醇、木聚糖和莲藕淀粉 | 22 |
崩解剂 | 质量比为2:3的银耳多糖和海藻酸 | 8 |
润滑剂 | 聚氧乙烯-8山嵛酸甘油酯 | 5 |
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分与填充剂、崩解剂、润滑剂混合均匀,制成粒径D90=206.3μm的颗粒;
(2)将颗粒制成直径为3mm,片重为25mg的微片。
实施例5
一种微型片剂,组成如下表:
表5 实施例5组成
组分 | 具体成分 | 重量份数 |
活性成分 | 盐酸西替利嗪 | 46 |
填充剂 | 质量比为6:1:1:5的微晶纤维素、赤藓糖醇、木聚糖和玉米淀粉 | 25 |
崩解剂 | 质量比为6:1的大豆多糖和海藻酸的混合物 | 6 |
润滑剂 | 双硬脂酸甘油酯 | 10 |
粘合剂 | 羟丙甲纤维素 | 5 |
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分微粉化,控制粒径为D90=36.9μm,使用水分散后,雾化系统喷雾喷入填充剂中,控制雾滴粒径为D90=92.7μm;40℃以下喷雾干燥,与崩解剂、润滑剂混合均匀,制成粒径D90=203.6μm的颗粒;
(2)将颗粒与粘合剂混合,制成直径为3mm,片重为30mg的微片。
实施例6
一种微型片剂,组成如下表:
表6 实施例6组成
组分 | 具体成分 | 重量份数 |
活性成分 | 利培酮 | 1.5 |
填充剂 | 质量比为4:1:1:3的微晶纤维素、赤藓糖醇、木聚糖和莲藕淀粉 | 20 |
崩解剂 | 质量比为6:1的大豆多糖和海藻酸混合物 | 8 |
润滑剂 | 单硬脂酸甘油酯 | 5 |
粘合剂 | 羟丙纤维素 | 1 |
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分微粉化,控制粒径为D90=9.5μm,使用水分散后,雾化系统喷雾喷入填充剂中,控制雾滴粒径为D90=81.2μm;40℃以下喷雾干燥,与崩解剂、润滑剂混合均匀,制成粒径D90=112.6μm的颗粒;
(2)将颗粒与粘合剂混合,制成直径为3mm,片重为20mg的微片。
实施例7
与实施例1的区别在于填充剂组成不同。
一种微型片剂,组成如下表:
表7 实施例7组成
组分 | 具体成分 | 重量份数 |
活性成分 | 左甲状腺素钠 | 0.03 |
填充剂 | 质量比为1:1的甘露醇和预胶化淀粉 | 25 |
崩解剂 | 质量比1:1:1的大豆多糖、葡聚糖醛酸和海藻酸 | 6 |
润滑剂 | 双硬脂酸甘油酯 | 7 |
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分微粉化,控制粒径为D90=9.3μm,使用水分散后,雾化系统喷雾喷入填充剂中,控制雾滴粒径为D90=87.6μm;40℃以下喷雾干燥,与崩解剂、润滑剂混合均匀,制成粒径D90=143.1μm的颗粒;
(2)将颗粒制成直径为3mm,片重为20mg的微片。
实施例8
与实施例1的区别在于崩解剂组成不同。
一种微型片剂,组成如下表:
表8 实施例8组成
组分 | 具体成分 | 重量份数 |
活性成分 | 左甲状腺素钠 | 0.03 |
填充剂 | 质量比为3:1:1:2的微晶纤维素、赤藓糖醇、木聚糖和玉米淀粉 | 25 |
崩解剂 | 交联羧甲纤维素钠 | 6 |
润滑剂 | 双硬脂酸甘油酯 | 7 |
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分微粉化,控制粒径为D90=9.3μm,使用水分散后,雾化系统喷雾喷入填充剂中,控制雾滴粒径为D90=87.6μm;40℃以下喷雾干燥,与崩解剂、润滑剂混合均匀,制成粒径D90=143.1μm的颗粒;
(2)将颗粒制成直径为3mm,片重为20mg的微片。
实施例9
与实施例1相比,崩解剂和填充剂均不同。
一种微型片剂,组成如下表:
表9 实施例9组成
组分 | 具体成分 | 重量份数 |
活性成分 | 左甲状腺素钠 | 0.03 |
填充剂 | 微晶纤维素 | 25 |
崩解剂 | 交联羧甲纤维素钠 | 6 |
润滑剂 | 双硬脂酸甘油酯 | 7 |
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分微粉化,控制粒径为D90=9.3μm,使用水分散后,雾化系统喷雾喷入填充剂中,控制雾滴粒径为D90=87.6μm;40℃以下喷雾干燥,与崩解剂、润滑剂混合均匀,制成粒径D90=143.1μm的颗粒;
(2)将颗粒制成直径为3mm,片重为20mg的微片。
实施例10
与实施例4的区别在于填充剂不同。
一种微型片剂,组成如下表:
表10 实施例10组成
所述微型片剂的制备方法同实施例4。
实施例11
与实施例5的区别在于填充剂不同。
一种微型片剂,组成如下表:
表11 实施例11组成
组分 | 具体成分 | 重量份数 |
活性成分 | 盐酸西替利嗪 | 46 |
填充剂 | 质量比为6:1:1:5的微晶纤维素、赤藓糖醇、木聚糖和玉米淀粉 | 25 |
崩解剂 | 交联聚乙烯吡咯烷酮 | 6 |
润滑剂 | 双硬脂酸甘油酯 | 10 |
粘合剂 | 羟丙甲纤维素 | 5 |
所述微型片剂的制备方法同实施例4。
实施例12
与实施例6的区别在于填充剂不同。
一种微型片剂,组成如下表:
表12 实施例12组成
所述微型片剂的制备方法同实施例6。
对比例1
与实施例1的区别在于活性成分的粒径不同。
一种微型片剂,组成同实施例1;
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分微粉化,控制粒径为D90=312.6μm,使用水分散后,雾化系统喷雾喷入填充剂中,控制雾滴粒径为D90=87.6μm;40℃以下喷雾干燥,与崩解剂、润滑剂混合均匀,制成粒径D90=143.1μm的颗粒;
(2)将颗粒制成直径为3mm,片重为20mg的微片。
对比例2
与实施例2的区别在于颗粒的粒径不同。
一种微型片剂,组成同实施例2;
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分微粉化,控制粒径为D90=43.6μm,使用水分散后,雾化系统喷雾喷入填充剂中,控制雾滴粒径为D90=378.5μm;25℃以下喷雾干燥,与崩解剂、助流剂混合均匀,制成粒径D90=396.8μm的颗粒;
(2)将颗粒制成直径为2mm,片重为10mg的微片。
对比例3
与实施例3的区别在于雾滴粒径不同。
一种微型片剂,组成同实施例3;
所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分微粉化,控制粒径为D90=17.8μm,使用水分散后,雾化系统喷雾喷入填充剂中,控制雾滴粒径为D90=631.2μm;60℃以下喷雾干燥,与崩解剂、润滑剂混合均匀,制成粒径D90=101.6μm的颗粒;
(2)将颗粒制成直径为3mm,片重为20mg的微片。
效果评价
1.重量差异试验
照2020年版《中国药典》四部片剂项下重量差异(通则0101)。
方法:取每个实施例或对比例制备的药品20片,精密称定总重量,求得平均片重后,再分别精密称定每片的重量,每片重量与平均片重比较,按表13中的规定,超出重量差异限度的不得多于2片,并不得有1片超出限度1倍。
表13 重量差异限度规定
平均片重或表示片重 | 重量差异限度 |
0.30g以下 | ±7.5% |
0.30g及0.30g以上 | ±5% |
按以上方法,对实施例1-12及对比例1-3制得的微片进行片重差异检查,试验结果见表14。
表14 重量差异效果数据
由上表可知,本发明提供的微片的重量差异较小,本发明的制备方法具有较高的稳定性。
2.含量均匀度试验
方法:照2020年版《中国药典》四部含量均匀度检查法(通则0941)。
若A+2.2S≤L,则供试品的含量均匀度符合规定;
若A+S>L,则不符合规定;
若A+2.2S>L,且A+S≤L,则应另取供试品20个复试。
上述公式中L为规定值,除另有规定外,L=15.0。
参照以上方法,对实施例1-12及对比例1-3制得的微片进行含量均匀度测定,结果见表15。
表15 含量均匀度
由上表可知,本发明提供的微片的含量均匀度符合规定,并且远小于规定要求,本发明制得的微片具有较好的含量均一性。
3.溶出度试试验
方法:参照2020年版《中国药典》二部各药品项下溶出方法进行检测。
照以上方法,对实施例1-12及对比例1-3制得的微片的溶出度进行测定。
表16 溶出度数据
试验组 | 溶出度(%) |
实施例1 | 96.5 |
实施例2 | 95.2 |
实施例3 | 95.5 |
实施例4 | 93.6 |
实施例5 | 92.8 |
实施例6 | 93.1 |
实施例7 | 90.4 |
实施例8 | 89.1 |
实施例9 | 87.5 |
实施例10 | 84.3 |
实施例11 | 79.6 |
实施例12 | 85.3 |
对比例1 | 80.2 |
对比例2 | 83.6 |
对比例3 | 81.9 |
由上表可知,本发明提供的微片的溶出度均较高,能够服用后快速崩解全部释放,有利于在体内的更好吸收,从而提高生物利用度。
4.稳定性试验
方法:参照《中国药典》二部各药品项下有关物质检测方法,对实施例1-12及对比例1-3的微片有关物质进行检测。
测试条件:分别在高温(40℃)、高湿(RH75%)、光照(5000lx)条件下放置10天及加速(40℃-RH75%)条件下放置1个月,检测有关物质,结果见下表。
表17 稳定性数据
由上表可知,本发明提供的微片具有显著的药物稳定性,且药物的辅料组成及其制备方法对其稳定性具有较大的影响。
上述详细说明是针对本发明其中之一可行实施例的具体说明,该实施例并非用以限制本发明的专利范围,凡未脱离本发明所为的等效实施或变更,均应包含于本发明技术方案的范围内。
Claims (11)
1.一种微型片剂,其特征在于,所述微型片剂的组分按重量份数计,为0.03份活性成分和38份辅料,所述辅料具体为25份填充剂、6份崩解剂和7份润滑剂,所述微型片剂的直径为1-5mm,片重为1-50mg;
所述活性成分为左甲状腺素钠;所述崩解剂为质量比为1:1:1的大豆多糖、葡聚糖醛酸和海藻酸混合物;
所述填充剂为质量比为3:1:1:2的微晶纤维素、赤藓糖醇、木聚糖和玉米淀粉的混合物;
所述润滑剂为双硬脂酸甘油酯;
所述活性成分的粒径D90=9.3μm;所述活性成分和辅料混合后的颗粒粒径为D90=143.1μm;所述微型片剂的制备方法中包括步骤:将活性成分使用溶剂分散后,喷入填充剂中,所述喷入是指用雾化系统喷雾,控制雾滴粒径为D90=87.6μm。
2.一种微型片剂,其特征在于,所述微型片剂的组分按重量份数计,为40份活性成分和37份辅料,所述辅料具体为30份填充剂、3份崩解剂和4份助流剂,所述微型片剂的直径为1-5mm,片重为1-50mg;
所述活性成分为磷酸奥司他韦;所述崩解剂为质量比为5:1:3的大豆多糖、葡聚糖醛酸和海藻酸混合物;
所述填充剂为质量比为6:1:2:5的微晶纤维素、赤藓糖醇、木聚糖和小麦淀粉的混合物;
所述助流剂为硬脂富马酸钠;
所述活性成分的粒径D90=43.6μm;所述活性成分和辅料混合后的颗粒粒径为D90=223.7μm;所述微型片剂的制备方法中包括步骤:将活性成分使用溶剂分散后,喷入填充剂中,所述喷入是指用雾化系统喷雾,控制雾滴粒径为D90=378.5μm。
3.一种微型片剂,其特征在于,所述微型片剂的组分按重量份数计,为0.25份活性成分和48份辅料,所述辅料具体为30份填充剂、8份崩解剂和10份润滑剂,所述微型片剂的直径为1-5mm,片重为1-50mg;
所述活性成分为地高辛;所述崩解剂为质量比为3:2的甘露糖和海藻酸混合物;
所述填充剂为质量比为2:1:1:3的微晶纤维素、赤藓糖醇、木聚糖和木薯粉的混合物;
所述润滑剂为硅酸铝镁;
所述活性成分的粒径D90=17.8μm;所述活性成分和辅料混合后的颗粒粒径为D90=101.6μm;所述微型片剂的制备方法中包括步骤:将活性成分使用溶剂分散后,喷入填充剂中,所述喷入是指用雾化系统喷雾,控制雾滴粒径为D90=453.9μm。
4.根据权利要求1-3任一项所述的微型片剂,其特征在于,所述微型片剂是指直径为1-3mm,片重为2-30mg。
5.根据权利要求1-4任一所述的微型片剂的制备方法,其特征在于,包括以下步骤:将活性成分和/或辅料混合后,制成微型片剂。
6.根据权利要求5所述的微型片剂的制备方法,其特征在于,将所述活性成分进行预处理。
7.根据权利要求6所述的微型片剂的制备方法,其特征在于,所述预处理为微粉化。
8.根据权利要求5所述的微型片剂的制备方法,其特征在于,所述微型片剂的制备方法,包括以下步骤:
(1)将活性成分使用溶剂分散后,喷入填充剂中,干燥,与崩解剂、润滑剂和/或助流剂混合均匀,制成颗粒;
(2)将颗粒制成微型片剂。
9.根据权利要求8所述的微型片剂的制备方法,其特征在于,步骤(1)中,所述干燥的方法为喷雾干燥,干燥温度为25-60℃。
10.根据权利要求9所述的微型片剂的制备方法,其特征在于,步骤(1)中,所述干燥的方法为喷雾干燥,干燥温度为25-40℃。
11.一种微型片剂制剂,其特征在于,所述制剂包括权利要求1-3任一所述的微型片剂,所述制剂中微型片剂的数量为单个或多个。
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