This invention provides a pharmaceutical solution formulation comprising tobramycin, water, sodium chloride and sodium citrate, wherein the formulation has a pH of 4.5-7.0 and an osmolality of 135-200 mOsmol/Kg.本發明提供包含妥布黴素(tobramycin)、水、氯化鈉及檸檬酸鈉之醫藥溶液調配物,其中該調配物具有4.5至7.0之pH及135 mOsmol/Kg至200 mOsmol/Kg之滲透壓。