CN Patent

CN103735544B — 一种维达列汀/盐酸二甲双胍复方制剂的制备工艺

Assigned to Nanjing Huawe Medicine Technology Group Co Ltd · Expires 2015-08-19 · 11y expired

What this patent protects

本发明提供一种维达列汀/盐酸二甲双胍复方制剂的制备工艺,包含如下步骤:(1)将维达列汀、盐酸二甲双胍、硅酸镁铝以及羟丙基纤维素加入到乙醇或异丙醇中,形成分散液;(2)将步骤(1)得到的分散液进行喷雾干燥,得到含活性物质的球形粉末;(3)筛分选择粒径在75μm~150μm间的通过上述方法制得含活性物质的粉末,加入1%硬脂酸镁,然后直接用来压制成片剂。本发明在物料整体均一的流动性方面和制剂储存稳定性产生了出人意料的满意效果。

USPTO Abstract

本发明提供一种维达列汀/盐酸二甲双胍复方制剂的制备工艺,包含如下步骤:(1)将维达列汀、盐酸二甲双胍、硅酸镁铝以及羟丙基纤维素加入到乙醇或异丙醇中,形成分散液;(2)将步骤(1)得到的分散液进行喷雾干燥,得到含活性物质的球形粉末;(3)筛分选择粒径在75μm~150μm间的通过上述方法制得含活性物质的粉末,加入1%硬脂酸镁,然后直接用来压制成片剂。本发明在物料整体均一的流动性方面和制剂储存稳定性产生了出人意料的满意效果。

Drugs covered by this patent

Patent Metadata

Patent number
CN103735544B
Jurisdiction
CN
Classification
Expires
2015-08-19
Drug substance claim
No
Drug product claim
No
Assignee
Nanjing Huawe Medicine Technology Group Co Ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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