https://lamintang.org/journal/index.php/jamaps <p>Journal of Advances in Medicine and Pharmaceutical Sciences (JAMAPS) provide a valuable platform for academicians, scholars, researchers and students to share their knowledge, ideas, development and insights of the most up-to-date research that focuses on the area of Medicine, Drug, Chemistry, and Pharmaceutical Sciences. JAMAPS published in English and twice a year (May and November).</p> Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE) en-US Journal of Advances in Medicine and Pharmaceutical Sciences 2964-268X https://lamintang.org/journal/index.php/jamaps/article/view/568 <p>Guava leaves (<em>Psidium guajava L.</em>) contain terpenoids, alkaloids, flavonoids, saponins and tannins, which are believed to have antibacterial properties against Aeromonas hydrophila. Aeromonas hydrophila bacteria are bacteria that are pathogenic and cause systemic disease. This research was conducted to determine the effectiveness of guava leaves in inhibiting Aeromonas hydrophil bacteria. The method used in the antibacterial activity test was the diffusion method using the paper disc technique. The results of the One-Way ANOVA test at the 5% level and followed by the Tukey test showed that the effective inhibitory concentration was 7900 ppm with a moderate antibacterial category.</p> Jamsuwan Pornpromlikit Komhom Suchart Copyright (c) 2023 Journal of Advances in Medicine and Pharmaceutical Sciences 2023-11-29 2023-11-29 2 2 29 35 10.36079/lamintang.jamaps-0202.568