Outpatients undergoing chemotherapy receive oral anticancer drugs, supportive care medicine, and drugs for complications from health insurance pharmacies(ie, drugstores). Therefore, drugstore personnel and patients were surveyed using a questionnaire to ascertain the current conditions of information sharing between drugstores and hospitals. Only 31% of the patients surveyed responded that they received cancer chemotherapy via the drugstores, while a few of them understood the need for information sharing with the drugstore. We also found that the drugstores required a considerable amount of patient information including prescribed therapeutic drugs, treatment regimens, disease conditions, and test value. Therefore, we held a study session and clinical conference to facilitate the creation of an information-sharing system. In conclusion, it is imperative for drugstores and hospitals to cooperate and establish a strategy for information sharing in the future.