A Qualitative Study: Factors Related to the Prevalence of Leftover Drugs for Senior Patients in Japan

Abstract

To consider what pharmacists can do to prevent patients from having leftover prescription drugs, we conducted a qualitative study about the various causes behind the unused drugs. We interviewed one male and four female home-care patients who had leftover prescription drugs that pharmacists detected via their home visiting service. The Grounded Theory Approach was used for analysis, and two types were identified as “exogenous factors that cause confusion for the patient” and “patient’s personal thoughts and feelings.” “Exogenous factors that cause confusion” involved eight factors, including unsuitable dosing schedule for lifestyle, complex timing for taking medicine, and inadequate support for enhancing patients’ compliance. These factors were divided into ［problems with prescription］ and ［difficult changes to manage］. In “patient’s personal thoughts and feelings,” 16 concepts were identified and their broader concepts comprised six categories: ［distrust of drugs］, ［taking a positive view about one’s own non-compliance］, ［psychological distance from medical staff］, and others. It was assumed that there would be a perception gap of compliance between patients and medical staff. Moreover, patients affirmed their poor compliance and they did not see the occurrence of leftover drugs as a problem. Additionally, psychological distance from medical staff prevents patients from consultation. Therefore, pharmacists should check patients’ compliance for each drug as well as any medical problems. Knowing patients’ inherent mind revealed by this study, the pharmacist can assist medication alongside patients and contribute to the early prevention of unused drugs.