Pharmaceutical composition for topical administration comprising piperacillin or its salt tazobactam or its salt and dexamethasone phosphate or its salt

摘要

The present invention relates to piperacillin or a pharmaceutically acceptable salt thereof; Tazobactam or a pharmaceutically acceptable salt thereof; Dexamethasone phosphate or a pharmaceutically acceptable salt thereof; And acetic acid salt or acetic acid and a salt thereof as a stabilizer, and a pharmaceutical composition for topical administration. The pharmaceutical composition according to the present invention can be formulated in the form of a reconstitutable formulation and can be rapidly reconstituted to minimize the generation of the drug substance for a long period of time (for example, about two weeks) It is stable and can be useful for multiple circuits over a long period of time.