It is desired to provide a pharmaceutical composition containing a compound represented by formula (I) or a pharmacologically acceptable salt thereof, or a solvate thereof, which exhibits an inhibitory effect on activated blood coagulation factor X (FXa), and is useful as an agent for preventing and/or treating thrombosis, wherein the pharmaceutical composition exhibits favorable dissolution properties. The present invention relates to a solid pharmaceutical composition containing a compound represented by formula (I) or a pharmacologically acceptable salt thereof, or a solvate thereof, wherein the content of the compound represented by formula (I) is 0.5% by weight or more and less than 15% by weight with respect to the total weight of the pharmaceutical composition.
