发明名称 |
HIGH CONTENT IBUPROFEN AGGLOMERATES AND PROCESS TO PREPARE THEM |
摘要 |
A process for the preparation of a pharmaceutical composition in the form of agglomerates comprising 70-97 % by weight of 2-(4-isobutylphenyl)propionic acid or a pharmaceutically acceptable salt thereof and 3-30 % by weight of a starch component, said process comprising the steps of a) forming an emulsion comprising 1) 70-97 % by weight of 2-(4-isobutylphenyl)propionic acid or a salt thereof; 2) a solvent system; 3) 3-30 % by weight of the starch component; 4) water and optionally 5) a surfactant; b) crystallising to produce a suspension comprising crystals of 2-(4-isobutylphenyl)propionic acid or the salt thereof in intimate contact with the starch component; c) agitating said suspension to form agglomerates comprising an evenly distributed mixture of 2-(4-isobutylphenyl)propionic acid or a salt thereof and the starch component; d) collecting said agglomerates and optionally e) drying said agglomerates. Pharmaceutical formulations comprising 90-99.98 % by weight of such a composition together with 0.02-10 % of a pharmaceutically acceptable excipient are also described, which are suitable for direct compression into tablets. Preferably the starch component comprises a mixture of maize starch and pregelled maize starch. |
申请公布号 |
WO9304676(A1) |
申请公布日期 |
1993.03.18 |
申请号 |
WO1992EP01953 |
申请日期 |
1992.08.25 |
申请人 |
THE BOOTS COMPANY PLC |
发明人 |
ATKIN, GRAHAM, JOHN;DREW, PETER;TURNER, JOHN, LESLIE |
分类号 |
A61K9/14;A61K9/16;A61K9/20;A61K31/19;A61K31/192;A61K47/36;A61P25/04;A61P29/00 |
主分类号 |
A61K9/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|