CN Patent

CN101146521A — 提供包含纤维素和甲基丙烯酸衍生物包衣的口服药物输送系统

Assigned to Sun Pharmaceutical Industries Ltd · Expires 2008-03-19 · 18y expired

What this patent protects

本发明提供口服药物输送系统，该口服药物输送系统包括(a)包含至少一种活性成分，优选抗抑郁剂和药学上可接受的赋形剂的核心，和(b)包围该核心的包衣，所述的包衣含有水不溶性纤维素衍生物和pH依赖性的聚合物，其中水不溶性纤维素衍生物优选地为乙基纤维素，pH依赖性的聚合物优选地为甲基丙烯酸衍生物。

USPTO Abstract

本发明提供口服药物输送系统，该口服药物输送系统包括(a)包含至少一种活性成分，优选抗抑郁剂和药学上可接受的赋形剂的核心，和(b)包围该核心的包衣，所述的包衣含有水不溶性纤维素衍生物和pH依赖性的聚合物，其中水不溶性纤维素衍生物优选地为乙基纤维素，pH依赖性的聚合物优选地为甲基丙烯酸衍生物。

Drugs covered by this patent

Patent Metadata

Patent number
CN101146521A
Jurisdiction
CN
Classification
—
Expires
2008-03-19
Drug substance claim
No
Drug product claim
No
Assignee
Sun Pharmaceutical Industries 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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