The present invention addresses the problem of providing a novel application of meglumine or a salt thereof. The present invention is an antiseptic agent containing meglumine or a salt thereof, and a pharmaceutical composition containing the antiseptic agent according to the present invention, and pertaining to: a pharmaceutical composition which does not contain benzalkonium chloride and which is placed in a reusable container； a product that comprises the pharmaceutical composition containing the antiseptic agent according to the present invention and a reusable container； and a method of improving the antiseptic effect of the pharmaceutical composition by including meglumine or a salt thereof in the pharmaceutical composition that has been placed in the reusable container.本發明之課題在於提供葡甲胺或其鹽之新穎之用途。本發明係關於：一種防腐劑，其含有葡甲胺或其鹽；一種醫藥組成物，其含有本發明之防腐劑，不含氯化烷基二甲基苄基銨，被放入至可重複使用的容器；一種製品，其具備含有本發明之防腐劑的醫藥組成物與可重複使用的容器；及一種提升醫藥組成物之防腐效果的方法，其使被放入至可重複使用的容器的醫藥組成物中含有葡甲胺或其鹽，藉此提升醫藥組成物之防腐效果。
