| abstract |
(57) [Summary] An aqueous preparation containing a poorly soluble drug, acetyltryptophan or a pharmaceutically acceptable salt thereof, and / or saccharin or a pharmaceutically acceptable salt thereof, and polyethylene glycol. The aqueous preparation of the present invention is prepared as an aqueous preparation in which a poorly soluble drug represented by dipyridamole or the like is dissolved in water in a preferable pH range for administration to a living body, so that irritation during administration is reduced. |