1. A liquid composition with water-based bromfenac containing (a) bromfenac or a salt thereof, (b) benzalkonium chloride and (c) at least one substance selected from the group consisting of a nonionic surfactant and a water-soluble polymer, which possesses preserving effectiveness, while the concentration (b) of benzalkonium chloride is in the range above 0.0005% and below 0.005%, the concentration of nonionic surfactant is 0.025% or higher, and below 0.25%, the concentration of water-soluble polymer is 0, 01% -1.4% .2. The water-based liquid composition according to claim 1, wherein the concentration of (a) bromfenac or its salt is 0.05% -0.15%. The water-based liquid composition according to claim 1, wherein the concentration of (b) benzalkonium chloride is 0.001% -0.002%. The water-based liquid composition according to claim 1, wherein at least one substance selected from the group consisting of a nonionic surfactant and a water-soluble polymer is a nonionic surfactant. The water-based liquid composition according to claim 1, wherein the nonionic surfactant is Polysorbate 80.6. The water-based liquid composition according to claim 1, wherein the concentration of the nonionic surfactant is 0.1% -0.15%. A water-based liquid composition according to claim 1, wherein at least one substance selected from the group consisting of a nonionic surfactant and a water-soluble polymer is a water-soluble polymer. The water-based liquid composition according to claim 1, wherein the water-soluble polymer is at least one substance selected from the group consisting of1. Жидкая композиция с бромфенаком на водной основе, содержащая (а) бромфенак или его соль, (b) хлорид бензалкония и (с) по меньшей мере одно вещество, выбранное из группы, состоящей из неионогенного поверхностно-активного вещества и водорастворимого полимера, которая обладает консервирующей эффективностью, при этом концентрация (b) хлорида бензалкония находится в пределах выше 0,0005% и ниже 0,005%,концентрация неио
