A liquid composition which comprises (a) a taxane-based active ingredient selected from the group consisting of docetaxel and derivatives thereof, (b) at least one glycol, and (c) at least one surfactant ingredient selected from the group consisting of polysorbates, polyoxyethylene glycol esters, and polyoxyethylene castor oil derivatives, wherein the volume ratio of the glycol (b) to the surfactant ingredient (c) is in the range of 45/55 to 55/45 and the total content of the glycol (b) and the surfactant ingredient (c) is 95 v/v% or higher relative to the whole volume of the liquid composition.一種液體組成物,其包含(a)選自包含多烯紫杉醇及其衍生物之群組中的紫杉醇系活性成分,(b)至少一種二醇,與(c)選自包含聚山梨糖醇酯(polysorbate)、聚氧乙二醇酯及聚氧乙烯蓖麻油衍生物之群組中的至少一種界面活性劑成分;(b)二醇與(c)界面活性劑成分的體積比為45/55~55/45之範圍;且相對於液體組成物的總體積,(b)二醇與(c)界面活性劑成分的合計含量為95v/v%以上。
