Antiviral agent containing benzodithiin derivative as active ingredient

摘要

Antiviral agents comprising, as an active ingredient, a 1,4-dihydro-2,3-benzodithiin derivative of the formula wherein each symbol is as defined in the Specification, or a pharmacologically acceptable salt thereof. The antiviral agents of the present invention have superior antiviral activity and are effective for the preventive and therapeutic treatment of viral diseases caused typically by RS virus.