METHODS FOR PRODUCING PHARMACEUTICAL COMPOSITIONS, PHARMACEUTICAL COMPOSITIONS, AND METHODS FOR PRODUCING AQUEOUS DISPERSIONS OF PHARMACEUTICAL COMPOSITIONS

To provide pharmaceutical compositions comprising an atomized hardly water soluble drug and production methods thereof, and methods for preparing pharmaceutical composition-containing aqueous dispersions with excellent stability.SOLUTION: Disclosed is a method for producing a pharmaceutical composit...

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Bibliographische Detailangaben
Hauptverfasser: FUJINO TAKUYA, YAMAMOTO YUICHI, KARAKIDA NAOTO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide pharmaceutical compositions comprising an atomized hardly water soluble drug and production methods thereof, and methods for preparing pharmaceutical composition-containing aqueous dispersions with excellent stability.SOLUTION: Disclosed is a method for producing a pharmaceutical composition comprising the steps of: (a) mechanically kneading a hardly water-soluble drug, a water soluble inorganic salt and a water soluble organic solvent; and (b) removing the water soluble inorganic salt and water soluble organic solvent following the step (a), where the water soluble organic solvent satisfies the following (i) to (iii): (i) its molecular weight is 100-350; (ii) it has two or more functional groups comprising hydroxy group and/or ester group; (iii) its viscosity at 60°C is 2-150 mPa s.SELECTED DRAWING: None 【課題】微粒子化した難水溶性薬物を含有する医薬組成物とその製造方法、および該医薬組成物を含有する安定性に優れた水性分散体の製造方法を提供する。【解決手段】難水溶性薬物、水溶性無機塩および水溶性有機溶剤をともに機械的に混錬する工程(a)と、工程(a)の後に、水溶性無機塩および水溶性有機溶剤を除去する工程(b)とを具備し、前記水溶性有機溶剤が、以下の(i)~(iii)を満足することを特徴とする医薬組成物の製造方法である。(i)分子量が100~350である。(ii)ヒドロキシル基および/またはエステル基からなる官能基を合計で2以上有する。(iii)60℃における粘度が2~150mPa・sである。【選択図】なし