en <div style=text-align: justify;><span style=font-size:11pt><span style=line-height:normal><span style=font-family:Calibri,sans-serif><b><span style=font-size:10.0pt><span style=font-family:Cambria,serif><span style=color:#4f81bd>Aims:</span></span></span></b> <span style=font-size:10.0pt><span style=font-family:Cambria,serif>This study aimed to examine the determinants of antibiotic self-medication behavior among health workers using the health belief model in 2024.</span></span></span></span></span><br> <span style=font-size:11pt><span style=line-height:normal><span style=font-family:Calibri,sans-serif><b><span style=font-size:10.0pt><span style=font-family:Cambria,serif><span style=color:#4f81bd>Instrument & Methods:</span></span></span></b><span style=font-size:10.0pt><span style=font-family:Cambria,serif> This cross-sectional study was performed on 146 health workers in the southern region of Tehran. A standardized questionnaire based on the health belief model was used to gather demographic information and evaluate health belief model constructs related to self-medication practices. Data analysis included t-tests, ANOVA, correlation analysis, and linear regression. </span></span></span></span></span><br> <span style=font-size:11pt><span style=line-height:normal><span style=font-family:Calibri,sans-serif><b><span style=font-size:10.0pt><span style=font-family:Cambria,serif><span style=color:#4f81bd>Findings:</span></span></span></b><span style=font-size:10.0pt><span style=font-family:Cambria,serif> The majority of participants were female (90%), with a mean age of 37.78 years. The average score for antibiotic self-medication behavior was 86.04%. Notably, women demonstrated a higher behavior score than men, and having health insurance was associated with an increased behavior score. Significant associations were found between education level, age, number of children, and self-medication behavior. Linear regression analysis indicated that all health belief model constructs (knowledge, perceived susceptibility, severity, benefits, barriers, and self-efficacy) influenced appropriate antibiotic consumption behavior, with knowledge exhibiting the strongest effect. </span></span></span></span></span><br> <span style=font-size:11pt><span style=line-height:normal><span style=font-family:Calibri,sans-serif><b><span style=font-size:10.0pt><span style=font-family:Cambria,serif><span style=color:#4f81bd>Conclusion:</span></span></span></b> <span style=font-size:10.0pt><span style=font-family:Cambria,serif>Knowledge, self-efficacy, perceived susceptibility, severity, benefits, and barriers influence correct antibiotic consumption behavior among health workers.</span></span></span></span></span></div> Antibiotics,Self-Medication,Health Belief Model,Behavioral Science, 455 461 http://hehp.modares.ac.ir/browse.php?a_code=A-10-20134-6&slc_lang=en&sid=4