PROBLEM TO BE SOLVED: To provide sugammadex or a pharmacologically acceptable salt-containing liquid preparation thereof which has improved light stability and does not necessarily need to be protected from light. SOLUTION: The method for producing sugammadex or a pharmacologically acceptable salt-containing liquid agent thereof, which comprises performing filtration sterilization in a sterilization step without performing high-pressure steam sterilization. [Selection diagram] None【課題】光安定性が改善されていて、遮光保存を必ずしも必要としないスガマデクス又はその薬理学的に許容される塩含有液剤を提供すること。【解決手段】高圧蒸気滅菌を行わず、滅菌工程においてろ過滅菌を行うことを特徴とする、スガマデクス又はその薬理学的に許容される塩含有液剤の製造方法。【選択図】なし
