The invention relates to an ophthalmic depot formulation containing benzyl benzoate and/or benzyl alcohol and polyethylene glycol and/or dimethylsulfoxide wherein the volume ratio of benzyl benzoate and/or benzyl alcohol and polyethylene glycol and/or dimethylsulfoxide in the ophthalmic depot formulation is 75:25-25:75, and the ophthalmic depot formulation contains a total of 50% (w/w) or more of benzyl benzoate and/or benzyl alcohol and polyethylene glycol and/or dimethylsulfoxide.本發明係關於一種眼科用儲庫型製劑，其係含有苯甲酸苄酯及/或苄基醇、以及聚乙二醇及/或二甲基亞碸的眼科用儲庫型製劑，眼科用儲庫型製劑中，苯甲酸苄酯及/或苄基醇、與聚乙二醇及/或二甲基亞碸之體積比為75：25~25：75，含有合計為50%(w/w)以上之苯甲酸苄酯及/或苄基醇、以及聚乙二醇及/或二甲基亞碸。
