ANTIMYCOTIC PHARMACEUTICAL COMPOSITION

摘要

In a pharmaceutical composition for external use containing a compound such as luliconazole and/or a salt thereof in an amount of 5% by mass or more, comprised is/are acetone, a polyoxyethylene alkyl (having 8 to 30 carbon atoms) ether, and/or a polyoxyethylene alkenyl (having 8 to 30 carbon atoms) ether. Provided is a preparation using a solvent other than crotamiton, propylene carbonate, and N-methyl-2-pyrrolidone as a solvent for solubilization and steric stabilization and having the following properties: 1) when a compound represented by the general formula (1) and/or a salt thereof has a stereoisomer, the amount of the stereoisomer of the compound and/or a salt thereof produced under a preservation condition of 60° C. for 3 weeks is 1% by mass or less with respect to the total mass of the compound and/or a salt thereof at the beginning of preservation; 2) the preparation is in a clear liquid state when preserved at a constant temperature of 20° C. immediately after manufacture; and 3) no crystal is deposited when the preparation is preserved at 5° C. for 2 weeks after manufacture.