CN Patent

CN1919197A — 一种含托拉塞米活性成分的缓释微丸及其制备方法

Assigned to Tianjin Institute of Pharmaceutical Research Co Ltd · Expires 2007-02-28 · 19y expired

What this patent protects

本发明公开了一种含托拉塞米活性成分的缓释微丸，由含药微丸及控释层组成，其制备方法包括：将空白丸芯包上托拉塞米或辅料与药物混合制成微丸后得到含药微丸，将阻滞剂、致孔剂、增塑剂或抗粘剂配成包衣液后，在包衣锅或流化床中喷涂于含药微丸的外层，制成缓释微丸。本发明制备的缓释微丸能有效的控制药物在一定的时间内释放，维持平稳的有效血药浓度，无突释现象发生。

USPTO Abstract

本发明公开了一种含托拉塞米活性成分的缓释微丸，由含药微丸及控释层组成，其制备方法包括：将空白丸芯包上托拉塞米或辅料与药物混合制成微丸后得到含药微丸，将阻滞剂、致孔剂、增塑剂或抗粘剂配成包衣液后，在包衣锅或流化床中喷涂于含药微丸的外层，制成缓释微丸。本发明制备的缓释微丸能有效的控制药物在一定的时间内释放，维持平稳的有效血药浓度，无突释现象发生。

Drugs covered by this patent

Patent Metadata

Patent number
CN1919197A
Jurisdiction
CN
Classification
—
Expires
2007-02-28
Drug substance claim
No
Drug product claim
No
Assignee
Tianjin Institute of Pharmaceutical Research 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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