Abstract: Objective To investigate our hospital emergency antibacterial drugs' use, and provide a reference for the clinical use of drugs. Methods Extracting the emergency pharmacy prescription during April 2012, selecting prescription use of antibacterial drugs(removal of eye medications, topical ointments and Chinese patent medicine). According to our hospital antibacterial drugs' statistical data and use the method of defined daily dose analysis, to analyze the utilization, combination with other drugs, irrational drug use and DDDs value. Results There were 6 118 antibacterial prescriptions. The antibacterial drug use rate was 39.2%. Among the antibacterial drug prescriptions,5 723 of them contained single agent, 6.45% of them contained one, two or more. Cephalosporins, especially the third-generation cephalosporin were used most frequently. The combination mainly contained one drug. The rest mostly contained two. The main irrational drug uses were without indication for the medication, improper administration and one time excessive dosages. Conclusion The using frequency of antibacterial drugs in our hospital was higher than the standard, and pre sented some unreasonable phenomenon. In order to ensure the safe, effective, and economic of medication, we should strengthen the training for rational use of drugs.

Key words: antibacterial drugs, analysis of emerrgency prescriptions, rational use of drugs