The liquid medicine for disinfection of contact lens which adopting the manufacturing process due to percolation sterilization profitably it is possible, is superior in stability is offered, in addition, also the manner which produces the liquid medicine for disinfection of contact lens which possesses that kind of property which is superior, industrially profitably is offered. Jointly using with hipuromerosu as a cationicity polypeptide anti-bacterial medicine and a thickener 2910, in order for kinematic viscosity with the dissolution obtaining and the 25 to become with 0.8 - 15mm2/s in water media, adjusting, you obtain the liquid medicine for disinfection of contact lens.ろ過滅菌による製造工程を有利に採用することの出来る、安定性に優れたコンタクトレンズの消毒用液剤を提供し、また、そのような優れた特性を有するコンタクトレンズの消毒用液剤を、工業的に有利に製造する方法をも提供する。カチオン性ポリペプチド抗菌剤と、増粘剤としてのヒプロメロース2910とを併用して、水性媒体中に溶解せしめ、25℃での動粘度が0.8~15mm2/sとなるように調整して、コンタクトレンズの消毒用液剤を得る。
