The impact of pharmacists on medication safety in mental health: A narrative review.

Background: Pharmacists' role in providing favorable patient outcomes has been established in previous literature. However, the impact of pharmacists in treating patients with mental illness needs further investigation. Patients diagnosed with mental illnesses face multiple challenges that affect their quality and longevity of life compared to the general population with similar age groups. Previous studies confirmed that drug related problems (DRPs) play a major role in these patients due to several factors, such as medication errors and drug interactions. The purpose of this review is to investigate the impact of pharmacist‐led initiatives in safe medication use for mental health populations. Methods: This narrative review examines the extent and nature of the literature on pharmacist‐led interventions related to medication safety with mental health conditions. The PubMed, Embase, PsycINFO, and Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases were searched from January 2000 until September 2023. A manual search of relevant citations was also conducted. The inclusion criteria included full‐text studies written in English and published within the above date range. Studies exploring pharmacist‐led interventions in any practice setting for patients with mental illnesses were included. Pharmacist‐led interventions as part of an interdisciplinary team were excluded. Results: A total of 13 studies were included, collectively involving 4488 patients and 51 pharmacists. The most described interventions included DRPs, medication adherence, and appropriate prescribing. Pharmacist‐led interventions were presented in various aspects, including medication therapy management, long‐acting antipsychotic medication administration, and DRPs resolution through clinical interventions as transition of care. Conclusion: The variation in healthcare settings and regulatory environments influenced the effectiveness of pharmacist‐led interventions. Pharmacists can depict DRP, prevent rehospitalizations, and assess any serious drug interactions that prevent harm and consequently have cost saving outcomes. This review highlights the need for more research, to quantify the impact of pharmacists in improving medication safety for mental health patients. [ABSTRACT FROM AUTHOR]