This article presents the protocol developed for a study investigating the effect of nursing interventions applied to older adults through home visits to raise awareness about rational drug use. This study protocol describes a randomized controlled trial with a parallel group design. Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) Statement 2013 checklist will be used in this study. The CONSORT (Consolidated Standards of Reporting Trials) flowchart will be followed in the protocol. The research sample will consist of 74 older adults aged 65 and over and living in a rural area in the Central Anatolian Region of Turkey. The older adults who meet the inclusion criteria will randomly be assigned to the intervention and control groups. Nursing interventions will last seven weeks and consist of individual training, counseling and reminders through home visits. The results will guide interventions to be planned to ensure and maintain rational drug use.