CN Patent

CN117797114B — 一种硝苯地平控释片及其制备方法

Assigned to Shandong New Time Pharmaceutical Co Ltd · Expires 2025-06-27 · 1y expired

What this patent protects

本发明属于药物制剂领域，具体涉及一种单层的硝苯地平控释片及其制备方法。本发明的硝苯地平控释片，通过泡腾崩解剂与常规控释片辅料的巧妙组合，借助膨胀的片芯中气体的推力使原料药尽可能释放。同时将双层片剂改为单层片剂，仅需要一步制粒，简化了制备工艺，提高了工艺稳定性，适合工业化应用。

USPTO Abstract

本发明属于药物制剂领域，具体涉及一种单层的硝苯地平控释片及其制备方法。本发明的硝苯地平控释片，通过泡腾崩解剂与常规控释片辅料的巧妙组合，借助膨胀的片芯中气体的推力使原料药尽可能释放。同时将双层片剂改为单层片剂，仅需要一步制粒，简化了制备工艺，提高了工艺稳定性，适合工业化应用。

Drugs covered by this patent

pyridostigmine-bromide (PYRIDOSTIGMINE BROMIDE)

Patent Metadata

Patent number: CN117797114B
Jurisdiction: CN
Classification: —
Expires: 2025-06-27
Drug substance claim: No
Drug product claim: No
Assignee: Shandong New Time 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.

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