The present invention provides a medicine for preventing or treating a
diabetes, which includes 2,2-dichloro-12-(4-chlorophenyl)-dodecanoic acid
or a pharmacologically acceptable salt thereof, and glibenclamide as
active ingredients. The present invention provides a method for
preventing or treating a diabetes, which includes administering
2,2-dichloro-12-(4-chlorophenyl)-dodecanoic acid or a pharmacologically
acceptable salt thereof, and glibenclamide to a patient suffering from or
having a possibility of suffering from diabetes.