CN Patent

CN1245968C — 一种萘普生钠缓释片剂的制备方法

Assigned to TEFENG PHARMACEUTICAL CO Ltd XINJIANG · Expires 2006-03-22 · 20y expired

What this patent protects

本发明属化学制药领域，具体涉及一种萘普生钠缓释片剂的制备方法。本发明采用高分子物质羟丙甲纤维素(HPMC)作为骨架材料，以萘普生钠为活性成分，加入一定量的释放速度调节剂，经科学设计制得镇痛、抗炎制剂萘普生钠缓释片。本发明萘普生钠缓释片剂起效快，药效强，作用时间延长和毒副作用低，体内外性质均与Naprelan对照品相似。本发明比包衣颗粒压片工艺操作简单，成本低，易于控制，易于工业化生产。

USPTO Abstract

本发明属化学制药领域，具体涉及一种萘普生钠缓释片剂的制备方法。本发明采用高分子物质羟丙甲纤维素(HPMC)作为骨架材料，以萘普生钠为活性成分，加入一定量的释放速度调节剂，经科学设计制得镇痛、抗炎制剂萘普生钠缓释片。本发明萘普生钠缓释片剂起效快，药效强，作用时间延长和毒副作用低，体内外性质均与Naprelan对照品相似。本发明比包衣颗粒压片工艺操作简单，成本低，易于控制，易于工业化生产。

Drugs covered by this patent

Patent Metadata

Patent number
CN1245968C
Jurisdiction
CN
Classification
—
Expires
2006-03-22
Drug substance claim
No
Drug product claim
No
Assignee
TEFENG PHARMACEUTICAL CO Ltd XINJIANG
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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