[Problem] The present invention pertains to a multi-chambered container provided with a partition wall, and the purpose of the invention is to enable a powdered medicine, which has been stored in a separated state, to be simply and readily mixed at the time of use and provided as an aqueous solution. [Solution] A multi-chambered container comprises a substantially flat pouch formed from a flexible film, a partition wall configured as a detachable seal detachably welding opposing inner surfaces of the pouch, and a pour port for infusion and discharge of a liquid, that is attached to the periphery of the pouch so as to open into one of the plurality of partitioned chambers. The partition wall comprises a horizontal section which extends along a gusseted bottom section of the pouch and a perpendicular section which is curved from the horizontal section to a pouch upper section. A first partitioned chamber having a large capacity is formed on one side of the partition wall close to the bottom section of the pouch, a second partitioned chamber having a small capacity is formed on the other side of the partition wall, and the pour port opens into the first partitioned chamber.
