This study examines the impact of pharmacy education on patients' knowledge of gastritis and its associated medications in several public health centers in Bogor City. Gastritis is a common digestive disorder caused by factors such as Helicobacter pylori infection and prolonged NSAID use. The research used a quantitative pre-experimental design with a one-group pre-test and post-test approach. One hundred patients with gastritis participated, receiving educational interventions through leaflets and oral explanations. Data were collected using structured questionnaires and analyzed with statistical methods.

Results showed a significant improvement in patient knowledge following the intervention, with the proportion of patients demonstrating high knowledge increasing from 45% to 94%. The Wilcoxon test confirmed a statistically significant effect of the educational program (p-value = 0.000). These findings underscore the effectiveness of pharmacy education in enhancing patients' understanding of gastritis and medication use, which may lead to improved treatment adherence and better health outcomes. Future research should investigate various educational media, expand to different populations or settings, and assess long-term knowledge retention and clinical outcomes. Exploring barriers to information uptake and the role of family or community support could further optimize educational interventions for managing chronic diseases.