CN Patent

CN116115580A — 一种枸橼酸托法替布缓释片及其制备方法

Assigned to Pku Healthcare Corp ltd · Expires 2023-05-16 · 3y expired

What this patent protects

本发明涉及一种枸橼酸托法替布缓释片及其制备方法，采用单室渗透泵技术，缓释片由片芯、缓释层包衣、速释层包衣组成。本发明将片芯的山梨醇部分替换为吸湿性低的赤藓醇或甘露醇；并通过调节缓释层包衣材料比例和缓释层包衣占片芯的重量，在保证托法替布缓释片的各项指标合格的前提下，避免了生产工艺中的制片粘冲的发生。

USPTO Abstract

本发明涉及一种枸橼酸托法替布缓释片及其制备方法，采用单室渗透泵技术，缓释片由片芯、缓释层包衣、速释层包衣组成。本发明将片芯的山梨醇部分替换为吸湿性低的赤藓醇或甘露醇；并通过调节缓释层包衣材料比例和缓释层包衣占片芯的重量，在保证托法替布缓释片的各项指标合格的前提下，避免了生产工艺中的制片粘冲的发生。

Drugs covered by this patent

Patent Metadata

Patent number
CN116115580A
Jurisdiction
CN
Classification
—
Expires
2023-05-16
Drug substance claim
No
Drug product claim
No
Assignee
Pku Healthcare Corp 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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