Drug Utilization Evaluation (DUE) of vancomycin: A cross-sectional study

•Evaluating the use of antibiotics leads to identifying drug problems.•Preventing antibiotic resistance, and controlling the cost of medication.•It is recommended to improve the administration and rational use of antibiotics and prevent.•DUE is a practical and continuous method, which evaluates the quality and economics of drug use.•This type of study be carried out with a larger sample size and in different populations.