Invention Grant
- Patent Title: Powdery composition for nasal administration
- Patent Title (中): 用于鼻腔给药的粉状组合物
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Application No.: US10860058Application Date: 2004-06-04
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Publication No.: US07731990B2Publication Date: 2010-06-08
- Inventor: Masahiko Dohi , Yoshihisa Nishibe , Yuji Makino , Tako Fujii
- Applicant: Masahiko Dohi , Yoshihisa Nishibe , Yuji Makino , Tako Fujii
- Applicant Address: JP Osaka
- Assignee: Teijin Limited
- Current Assignee: Teijin Limited
- Current Assignee Address: JP Osaka
- Agency: Sughrue Mion, PLLC
- Priority: JP8-39553 19960227; JP8-41079 19960228
- Main IPC: A61K9/50
- IPC: A61K9/50 ; A61K9/14

Abstract:
A powdery composition for nasal administration, where (1) the composition contains (i) a drug, (ii) a water-absorbing and gel-forming base material such as hydroxypropyl cellulose or hydroxypropylmethyl cellulose and (iii) a water-absorbing and water-insoluble base material such as crystalline cellulose or α-cellulose, (2) wherein the amount of the water-absorbing and gel-forming base material is about 5-40 wt % based on the total of the water-absorbing and gel-forming base material and the water-absorbing and water-insoluble base material, and (3) wherein the drug is unevenly dispersed more on/in the water-absorbing and water-insoluble base material than on/in the water-absorbing and gel-forming base material.
Public/Granted literature
- US20040219108A1 Powdery composition for nasal administration Public/Granted day:2004-11-04
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