To provide a double chamber container preparation which can rapidly dissolve a medicine in a dissolving liquid in use and does not evolve gas at a low cost without requiring intricate process steps.
The double chamber container preparation having at least two chambers compartmentalized by communicatively connectable isolating means includes a first chamber in which the medicine not containing carbonate and hydrogencarbonate is housed and a second chamber in which the dissolving liquid containing a pH control agent is housed. The first chamber and the second chamber are communicatively connected to each other, by which the dissolving liquid housed in the second chamber is transferred to the first chamber and the medicine housed in the first chamber is easily dissolved in the dissolving liquid.
UMEDA NAOKI
SATO MAKOTO
