Torasemide injection and preparation method thereof

The invention discloses a torasemide injection and a preparation method thereof. The preparation process of the torasemide comprises the following steps: preparing a sodium hydroxide solution with a certain concentration, adding a prescription amount of torasemide, after the torasemide is completely dissolved, adding PEG400 and tromethamine to dissolve the torasemide, fixing the volume, adjusting the pH value, sterilizing and filtering, and filling. The preparation method provided by the invention is simple in process, easy to implement and good in production amplification controllability. 本发明公开了一种托拉塞米注射液及其制备方法。本发明所述的托拉塞米制备过程包括配制一定浓度的氢氧化钠溶液，加入处方量的托拉塞米，待溶解完全后，加入PEG400、氨丁三醇使溶解，定容，调pH，除菌过滤，灌装。本发明提供的制备方法，工艺简单，易于实施，生产放大可控性好。