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1. (WO2017155020) COMPOSITION CONTAINING FINE PARTICLES, AND METHOD FOR PRODUCING SAME

Pub. No.:    WO/2017/155020    International Application No.:    PCT/JP2017/009428
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Fri Mar 10 00:59:59 CET 2017
IPC: A61K 9/19
A61K 31/405
A61K 31/496
A61K 31/499
A61K 47/10
A61K 47/14
A61K 47/32
A61K 47/34
A61K 9/10
A61K 9/16
Applicants: SUMITOMO DAINIPPON PHARMA CO., LTD.
大日本住友製薬株式会社
Inventors: SAITO, Shunsuke
齋藤 俊介
Title: COMPOSITION CONTAINING FINE PARTICLES, AND METHOD FOR PRODUCING SAME
Abstract:
The present invention relates to: a composition comprising (A) an active ingredient that is poorly soluble in water and can be dissolved in a lower alcohol having 1 to 4 carbon atoms which may contain water at a concentration of 30 vol% or less, (B) polyvinyl alcohol having a rate of saponification of 55 to 99% and (C) a nonionic surfactant, wherein the active ingredient (A) has an average particle diameter of 10 to 300 nm; and a method for producing the composition.