Inappropriate medication use among surgical patients poses significant risks, including antibiotic resistance, complications, mortality, increased healthcare costs and challenges in pain management. This study aimed to assess the extent of inappropriate antibiotic and analgesic prescriptions, treatment adequacy and contributing factors.

A hospital-based cross-sectional study was conducted among patients admitted to surgical wards in three comprehensive specialised hospitals in northwest Ethiopia.

All eligible adult patients admitted to the surgical wards during the data collection period were included in the study.

The primary outcomes were the appropriateness of antibiotic and analgesic prescriptions. To assess patients’ pain perception and the effectiveness of pain management strategies, the American Pain Society Patient Outcome Questionnaire was used. The Pain Management Index was employed to evaluate the treatment adequacy. The RAND (Research and Development)-modified Delphi method was applied to reach expert consensus on best practices for antibiotic prescribing. Additionally, the national standard treatment guideline was used to benchmark prescribing practices. Binary logistic regression was used to identify factors associated with inappropriate prescriptions of antibiotics and analgesics.

The prevalence of inappropriate antibiotics use was 67.5% and 42.2% of patients received inappropriate analgesic prescriptions. Moreover, 51.6% of patients experienced inadequate pain management. Significant factors associated with inappropriate antibiotic prescription included the presence of comorbidities (adjsuted OR (AOR) 3.34, 95% CI 1.88 to 5.92), lack of laboratory tests (AOR 0.26, 95% CI 0.16 to 0.43, higher number of medications (AOR 2.71, 95% CI 1.62 to 4.52) and contaminated wound class (AOR 3.13, 95% CI 1.58 to 6.20). For inappropriate analgesic prescription, pain due to disease (AOR 8.69, 95% CI 1.73 to 4.62), mixed causes of pain (AOR 7.20, 95% CI 1.43 to 6.31), head and facial pain (AOR 0.14, 95% CI 0.05 to 0.39) and an increased number of medications (AOR 2.75, 95% CI 1.72 to 4.41) were significant factors.

The majority of the patients admitted to surgical wards were found to receive inappropriate antibiotic and analgesic medications. Prescribers should pay attention to patients with comorbid diseases, receiving multiple medications. Additionally, routine laboratory tests are essential for guiding antibiotic therapy and improving patient outcomes in surgical wards.