A pharmaceutical composition which comprises 1) a compound represented by the following general formula (1) and/or a salt thereof; and 2) a ketone such as methyl ethyl ketone. Preferably, the compound represented by the following general formula (1) is luliconazole, where R1═R2=a chlorine atom: where R1 and R2 each independently represents a hydrogen atom or a halogen atom, and at least one of R1 and R2 represents a halogen atom. The present invention provides a preparation excellent in solubilization stability for a compound represented by the general formula (1) and/or a salt thereof in low-temperature or high-temperature storage.