<p>A solid preparation prepared from a powder obtained by dissolving 3-[3-(6-benzoyloxy-3-cyano-2-pyridyloxycarbonyl)benzoyl]-1-ethoxymethy l-5-fluorouracil (BOF-A2) and a water-soluble high-molecular compound completely in an organic solvent and removing the solvent to leave an amorphous substance behind. The preparation serves to promote the absorption of BOF-A2 through the digestive tract by increasing its solubility.</p>
