OBJECTIVE: To analyze the drug use in outpatient and emergency departments of our hospital.METHODS: A total of 12 000 prescriptions in outpatient and emergency departments in 2006 were randomly sampled for the analysis of drug use.RESULTS: 43% of the drugs were used singly and 13% were combined use of 4 or more than 4 drugs.Oral administration and intravenous injection were the leading routes of administration.3.10% of the prescriptions were irrational in dosage,repeated drug use,dosage regimen,use of dissolvants,drug combination,and drug choice etc.CONCLUSION: The drug use in the outpatient and emergency departments of our hospital were rational basically,yet there are still some problems remains to be tackled.Great importance should be attached to the prescription check.