CN Patent

CN102836137A — 一种高含量均匀度的盐酸普拉克索缓释片剂及其制备方法

Assigned to Shandong Qidu Pharmaceutical Co Ltd · Expires 2012-12-26 · 13y expired

What this patent protects

本发明属于药物制剂领域，更具体地说，本发明设计一种高含量均匀度的盐酸普拉克索缓释片剂及其制备方法。本发明的缓释片提供了一种释药不受pH依赖的盐酸普拉克索缓释片，在pH1.2、4.5及6.8缓冲液中呈24小时缓释，最终释放量均高于85%，每日仅需服药一次。本发明所述的制备方法，简单易行，并可确保盐酸普拉克索此类低剂量药物含量均匀度和释放度标准偏差（RSD）远低于限度要求，批间差异小，重现性好。

USPTO Abstract

本发明属于药物制剂领域，更具体地说，本发明设计一种高含量均匀度的盐酸普拉克索缓释片剂及其制备方法。本发明的缓释片提供了一种释药不受pH依赖的盐酸普拉克索缓释片，在pH1.2、4.5及6.8缓冲液中呈24小时缓释，最终释放量均高于85%，每日仅需服药一次。本发明所述的制备方法，简单易行，并可确保盐酸普拉克索此类低剂量药物含量均匀度和释放度标准偏差（RSD）远低于限度要求，批间差异小，重现性好。

Drugs covered by this patent

pramipexole-dihydrochloride (PRAMIPEXOLE DIHYDROCHLORIDE)

Patent Metadata

Patent number: CN102836137A
Jurisdiction: CN
Classification: —
Expires: 2012-12-26
Drug substance claim: No
Drug product claim: No
Assignee: Shandong Qidu Pharmaceutical 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.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.