PROBLEM TO BE SOLVED: To obtain a sustained release external preparation which is freely applicable even to a surface having a complicated shape and sustainably releases a medicine and can simply control release of the medicine.SOLUTION: This external preparation comprises nonpolar polymer fine particles containing the medicine and a base having extensibility and disperses these nonpolar polymer fine particles containing the medicine in the base having the extensibility.COPYRIGHT: (C)2003,JPO【課題】 複雑な形状の表面でも自由に適用でき、かつ薬物を持続的に放出するとともに、簡便に薬物放出コントロールができる薬物徐放性外用剤を提供する。【解決手段】 薬物を含有する非多孔性ポリマー微粒子および展延性の基剤を含んでなり、かつ該非多孔性ポリマー微粒子を該展延性の基剤に分散させてなる外用剤。
