CN Patent

CN1988889A — 含托吡酯的缓释制剂及其制备方法

Assigned to Amorepacific Corp · Expires 2007-06-27 · 19y expired

What this patent protects

本发明公开缓释托吡酯制剂和制备托吡酯制剂的方法。所述缓释托吡酯制剂是采用二次粒子来进行制备，其中所述二次粒子是通过固体分散法，采用固体分散剂将托吡酯或其药物学可接受的盐颗粒化(初次制粒)，以及进一步通过干法或湿法制粒，采用缓释材料将所述颗粒颗粒化(二次制粒)来获得。

USPTO Abstract

本发明公开缓释托吡酯制剂和制备托吡酯制剂的方法。所述缓释托吡酯制剂是采用二次粒子来进行制备，其中所述二次粒子是通过固体分散法，采用固体分散剂将托吡酯或其药物学可接受的盐颗粒化(初次制粒)，以及进一步通过干法或湿法制粒，采用缓释材料将所述颗粒颗粒化(二次制粒)来获得。

Drugs covered by this patent

venlafaxine-besylate (VENLAFAXINE BESYLATE)

Patent Metadata

Patent number: CN1988889A
Jurisdiction: CN
Classification: —
Expires: 2007-06-27
Drug substance claim: No
Drug product claim: No
Assignee: Amorepacific Corp
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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