CN113456603A - 一种拉莫三嗪分散片的制备方法 - Google Patents
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Abstract
本发明公开了一种拉莫三嗪分散片的制备方法,包括如下步骤:S1:原辅料预处理;S2:配制粘合剂;S3:加粘合剂制粒;S4:干燥整粒;S5:总混;S6:压片。原辅料的重量百分比为:拉莫三嗪39.4%、甘露醇27.6%、微晶纤维素23.7wt%、羧甲淀粉钠3.9wt%、交联聚维酮1.6wt%、阿斯帕坦1.0wt%、橘子味香精1.0wt%。通过本方法制备的拉莫三嗪分散片在外观、脆碎度、分散均匀性和原研制剂无明显差异,且香味为橘子味更容易被接受;且拉莫三嗪分散片稳定性较高,在长时间的放置过程中,不含降解杂质。
Description
技术领域
本发明涉及医药加工技术领域,更具体地说,涉及一种拉莫三嗪分散片的制备方法。
背景技术
拉莫三嗪为白色或类白色粉末,微溶于水,熔点216-218℃。药理学研究结果提示拉莫三嗪是一种电压门控式钠离子通道的使用依赖性阻滞剂。对培养的神经元细胞产生的持续反复放电,拉莫三嗪能产生一种使用依赖性和电压依赖性阻滞,同时抑制病理性谷氨酸的病理性释放(这种氨基酸对癫痫发作的形成起着关键性的作用),也抑制谷氨酸诱发的动作电位的爆发。
拉莫三嗪分散片为处方药,原研制剂商品名为“利必通”。其功能主治顽固性癫痫,单独使用或作为添加治疗,也可用于治疗合并有全面性加斯托伦诺克斯综合征的癫痫发作。是目前市场上最为理想的治疗癫痫病的药物之一。作为单药治疗,拉莫三嗪分散片是一种广谱、高效、安全的抗癫痫药物。相比于同类抗癫痫药物,拉莫三嗪分散片具有更多的优点,它能满足不同的年龄层,适用于更多的受众,而且能高效的抑制癫痫的发作,低毒、不良作用少,服用方便,患者允从性强。拉莫三嗪主要药用价值为抗癫痫作用,同时是改善情绪低落成为治疗双相情感障碍的首选药物,通过稳定通道的非激活状态并减轻锥体外系反应用来辅助治疗精神分裂症。拉莫三嗪具有一定的抗焦虑作用,有助于海洛因依赖者抑郁及焦虑障碍的治疗。
现有的拉莫三嗪分散片分散后口感较差,不便于患者服用;同时现有的拉莫三嗪分散片制备难度大、对操作人员技术要求较高,残品率较高,不适用于大规模生产。
发明内容
本发明的目的在于提供一种拉莫三嗪分散片的制备方法,通过该方法制备的拉莫三嗪分散片制备简单、稳定性高、口感较好、、便于服用,用以解决上述背景技术中存在的技术问题。
本发明技术方案一种拉莫三嗪分散片的制备方法,包括如下步骤:
S1:原辅料预处理,称取如下重量百分比的各组分:拉莫三嗪39-39.4wt%、甘露醇27.6-28wt%、微晶纤维素23-23.7wt%、羧甲淀粉钠3.9-4.6wt%、交联聚维酮1.6-2wt%、阿斯帕坦0.8-1wt%、橘子味香精1-1.1wt%,将原辅料混合过筛;
S2:配制粘合剂,称取聚维酮0.4-0.8wt%,并加入纯化水至聚维酮完全溶解;
S3:加粘合剂制粒,将S1的原辅料加入带有筛网的湿法制粒机中混合搅拌,然后将S2得到的粘合剂加入进行搅拌、切割,得到湿颗粒;
S4:干燥整粒,将湿颗粒倒入流化床中进行干燥,并通过装有筛网的整粒机进行整粒;
S5:总混,在整粒后的原料中加入硬脂酸镁1-1.1wt%混合搅拌;
S6:压片,将S5得到的原料进行压片并干燥,得到拉莫三嗪分散片。
在一个优选地实施例中,原辅料的重量百分比为:拉莫三嗪39.4%、甘露醇27.6%、微晶纤维素23.7wt%、羧甲淀粉钠3.9wt%、交联聚维酮1.6wt%、阿斯帕坦1.0wt%、橘子味香精1.0wt%。
在一个优选地实施例中,所述聚维酮0.8wt%,所述硬脂酸镁1wt%。
在一个优选地实施例中,S1中过筛的筛网目数为50目,S3中湿法制粒机的筛网目数为24目,S4中整粒机筛网的目数为30目。
在一个优选地实施例中,S6中得到的拉莫三嗪分散片的单片质量为126-127mg。
本发明技术方案的有益效果是:
采用如下原料作为原辅料:拉莫三嗪、甘露醇、微晶纤维素、羧甲淀粉钠、交联聚维酮、阿斯帕坦、橘子味香精,其中橘子味香精保证了制备的分散片的口感,相较于原研制品更好入口。在原辅料混合时进行过筛处理,避免原辅料出现结块等现象。采用聚维酮作为粘合剂使原辅料进行粘合,通过加入硬脂酸镁保证压片成功率。
通过本方法制备的拉莫三嗪分散片在外观、脆碎度、分散均匀性和原研制剂无明显差异,且香味为橘子味更容易被接受;且拉莫三嗪分散片稳定性较高,在长时间的放置过程中,不含降解杂质。
具体实施方式
下面结合具体实施方式对本发明作进一步详细的说明。本发明的实施例是为了示例和描述方便起见而给出的,而并不是无遗漏的或者将本发明限于所公开的形式。很多修改和变化对于本领域的普通技术人员而言是显而易见的。选择和描述实施例是为了更好说明本发明的原理和实际应用,并且使本领域的普通技术人员能够理解本发明从而设计适于特定用途的带有各种修改的各种实施例。
实施例1
本发明技术方案一种拉莫三嗪分散片的制备方法,包括如下步骤:
S1:原辅料预处理,称取如下重量百分比的各组分拉莫三嗪39.4%、甘露醇27.6%、微晶纤维素23.7wt%、羧甲淀粉钠3.9wt%、交联聚维酮1.6wt%、阿斯帕坦1.0wt%、橘子味香精1.0wt%,将原辅料混合过筛;
S2:配制粘合剂,称取聚维酮聚维酮0.8wt%,并加入纯化水至聚维酮完全溶解;
S3:加粘合剂制粒,将S1的原辅料加入带有筛网的湿法制粒机中混合搅拌,然后将S2得到的粘合剂加入进行搅拌、切割,得到湿颗粒;
S4:干燥整粒,将湿颗粒倒入流化床中进行干燥,并通过装有筛网的整粒机进行整粒;
S5:总混,在整粒后的原料中加入硬脂酸镁1wt%混合搅拌;
S6:压片,将S5得到的原料进行压片并干燥,得到拉莫三嗪分散片。
S1中过筛的筛网目数为50目,S3中湿法制粒机的筛网目数为24目,S4中整粒机筛网的目数为30目。
S6中得到的拉莫三嗪分散片的单片质量为126.75。
实施例2
本发明技术方案一种拉莫三嗪分散片的制备方法,包括如下步骤:
S1:原辅料预处理,称取如下重量百分比的各组分:拉莫三嗪39wt%、甘露醇28wt%、微晶纤维素23wt%、羧甲淀粉钠4.6wt%、交联聚维酮1.6wt%、阿斯帕坦0.8wt%、橘子味香精1.1wt%,将原辅料混合过筛;
S2:配制粘合剂,称取聚维酮0.8wt%,并加入纯化水至聚维酮完全溶解;
S3:加粘合剂制粒,将S1的原辅料加入带有筛网的湿法制粒机中混合搅拌,然后将S2得到的粘合剂加入进行搅拌、切割,得到湿颗粒;
S4:干燥整粒,将湿颗粒倒入流化床中进行干燥,并通过装有筛网的整粒机进行整粒;
S5:总混,在整粒后的原料中加入硬脂酸镁1.1wt%混合搅拌;
S6:压片,将S5得到的原料进行压片并干燥,得到拉莫三嗪分散片。
S1中过筛的筛网目数为50目,S3中湿法制粒机的筛网目数为24目,S4中整粒机筛网的目数为30目。
S6中得到的拉莫三嗪分散片的单片质量为126mg。
实施例3
本发明技术方案一种拉莫三嗪分散片的制备方法,包括如下步骤:
S1:原辅料预处理,称取如下重量百分比的各组分:拉莫三嗪39.4wt%、甘露醇28wt%、微晶纤维素23.7wt%、羧甲淀粉钠3.9wt%、交联聚维酮2wt%、阿斯帕坦1wt%、橘子味香精1wt%,将原辅料混合过筛;
S2:配制粘合剂,称取聚维酮0.4wt%,并加入纯化水至聚维酮完全溶解;
S3:加粘合剂制粒,将S1的原辅料加入带有筛网的湿法制粒机中混合搅拌,然后将S2得到的粘合剂加入进行搅拌、切割,得到湿颗粒;
S4:干燥整粒,将湿颗粒倒入流化床中进行干燥,并通过装有筛网的整粒机进行整粒;
S5:总混,在整粒后的原料中加入硬脂酸镁1wt%混合搅拌;
S6:压片,将S5得到的原料进行压片并干燥,得到拉莫三嗪分散片。
S1中过筛的筛网目数为50目,S3中湿法制粒机的筛网目数为24目,S4中整粒机筛网的目数为30目。
S6中得到的拉莫三嗪分散片的单片质量为127mg。
将实施例1-3制备的拉莫三嗪分散片与原研制剂检测对比,结果如下表一所示:
表一
由表一可知,本发明制备的拉莫三嗪分散片在外观、脆碎度、分散均匀性和原研制剂无明显差异,且香味为橘子味更容易被接受。
将实施例1-3制备的拉莫三嗪分散片与原研制剂在温度30±2℃,湿度65±5%条件下进行稳定性研究,并对关键杂质A(降解杂质)进行比较,具体结果如下表二所示:
| 样品名称 | 0月 | 3月 | 6月 | 9月 | 12月 |
| 实施例1 | 未检出 | 未检出 | 未检出 | 未检出 | 未检出 |
| 实施例2 | 未检出 | 未检出 | 未检出 | 未检出 | 未检出 |
| 实施例3 | 未检出 | 未检出 | 未检出 | 未检出 | 未检出 |
| 原研制品 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 |
表2
由表二可知,本发明制备的拉莫三嗪分散片稳定性较高,在长时间的放置过程中,未检测到降解杂质。
显然,所描述的实施例仅仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域及相关领域的普通技术人员在没有作出创造性劳动的前提下所获得的所有其他实施例,都应属于本发明保护的范围。本发明中未具体描述和解释说明的结构、装置以及操作方法,如无特别说明和限定,均按照本领域的常规手段进行实施。
Claims (5)
1.一种拉莫三嗪分散片的制备方法,其特征在于,包括如下步骤:
S1:原辅料预处理,称取如下重量百分比的各组分:拉莫三嗪39-39.4wt%、甘露醇27.6-28wt%、微晶纤维素23-23.7wt%、羧甲淀粉钠3.9-4.6wt%、交联聚维酮1.6-2wt%、阿斯帕坦0.8-1wt%、橘子味香精1-1.1wt%,将原辅料混合过筛;
S2:配制粘合剂,称取聚维酮0.4-0.8wt%,并加入纯化水至聚维酮完全溶解;
S3:加粘合剂制粒,将S1的原辅料加入带有筛网的湿法制粒机中混合搅拌,然后将S2得到的粘合剂加入进行搅拌、切割,得到湿颗粒;
S4:干燥整粒,将湿颗粒倒入流化床中进行干燥,并通过装有筛网的整粒机进行整粒;
S5:总混,在整粒后的原料中加入硬脂酸镁1-1.1wt%混合搅拌;
S6:压片,将S5得到的原料进行压片并干燥,得到拉莫三嗪分散片。
2.根据权利要求1所述的一种拉莫三嗪分散片的制备方法,其特征在于,原辅料的重量百分比为:拉莫三嗪39.4%、甘露醇27.6%、微晶纤维素23.7wt%、羧甲淀粉钠3.9wt%、交联聚维酮1.6wt%、阿斯帕坦1.0wt%、橘子味香精1.0wt%。
3.根据权利要求1所述的一种拉莫三嗪分散片的制备方法,其特征在于,所述聚维酮0.8wt%,所述硬脂酸镁1wt%。
4.根据权利要求1所述的一种拉莫三嗪分散片的制备方法,其特征在于,S1中过筛的筛网目数为50目,S3中湿法制粒机的筛网目数为24目,S4中整粒机筛网的目数为30目。
5.根据权利要求1所述的一种拉莫三嗪分散片的制备方法,其特征在于,S6中得到的拉莫三嗪分散片的单片质量为126-127mg。
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