We conducted a document analysis to assess the presence of courses related to polypharmacy, their placement within the medical school curriculum, the responsible departments, and the allocated lecture hours across Japan's 82 medical schools. Using syllabi published on their websites, we identified relevant courses through syllabus searches and comprehensive manual reviews by researchers. Among these schools, 22 (26.8%) offered courses related to polypharmacy. Our findings suggest that undergraduate education on polypharmacy has not yet been widely implemented nationwide, highlighting the need for further promotion efforts. Developing effective educational strategies remains an important challenge for the future.