| abstract |
[PROBLEMS] To provide an external composition containing acyclovirs containing a nonionic surfactant, which suppresses a decrease in the stability of acyclovirs caused by the nonionic surfactant and has a higher stability of active ingredients. To do. (A) At least one selected from the group consisting of acyclovir, vidarabine, penciclovir, famciclovir, valacyclovir and salts thereof, (B) a nonionic surfactant, (C) tocopherol, isopropyl An external composition containing at least one selected from the group consisting of methylphenol, camphor, allantoin, cetylpyridinium, a pharmaceutically acceptable salt thereof, a pharmaceutically acceptable derivative thereof, and chlorobutanol. [Selection figure] None |