abstract |
(57) [Summary]nThe present invention relates to a composition capable of forming micelles in a body fluid or an aqueous medium, which can be injected into a body without dilution or as a solution diluted with an aqueous medium, and a method for producing the same. The composition of the present invention contains an amphiphilic block copolymer having a hydrophilic poly (alkylene glycol) component and a hydrophobic biodegradable polymer component contained in a poly (ethylene glycol) medium. Such compositions are useful for solubilizing and administering poorly water soluble drugs. |