Aqueous liquid formulations

摘要

An aqueous liquid formulation which comprises a compound of formula I:wherein Y is a hydroxy group, a carboxyl group, an acyloxy group or an alkoxycarbonyl group; R is a lower alkyl group or a lower alkyl group with one or more halogen atoms; or a pharmaceutically acceptable salt thereof or a pharmaceutically acceptable solvate of them as an active ingredient, together with one or more substances selected from the group consisting of boric acid, borax, phosphate salts and carbonate salts.