Benzodiazepine and z-hypnotic prescribing from acute psychiatric inpatient discharge to long-term care in the community

Citation

Johnson CF, Ali Nassr O, Harpur C, Kenicer D, Thom A & Akram G (2018) Benzodiazepine and z-hypnotic prescribing from acute psychiatric inpatient discharge to long-term care in the community. Pharmacy Practice, 16 (3), Art. No.: 1256. https://doi.org/10.18549/PharmPract.2018.03.1256

Abstract
Background: Benzodiazepine and z-hypnotic prescribing has slowly decreased over the past 20 years, however long-term chronic prescribing still occurs and is at odds with prescribing guidance. Objectives: To identify the pattern of benzodiazepine and z-hypnotic prescribing in psychiatric inpatients at discharge and 12 months post-discharge. Methods: Retrospective observational longitudinal cohort study of patients admitted to two adult psychiatric wards between June and November 2012 (inclusive) who were discharged with a prescription for a benzodiazepine or z-hypnotic drug. Routinely collected prescription data available from NHS Scotland Prescribing Information System was used to identify and follow community prescribing of benzodiazepine and z-hypnotics for a 12 month period post-discharge. Data were entered in Excel® and further analysed using SPSS 23. Ethical approval was not required for this service evaluation however Caldicott Guardian approval was sought and granted. Results: Eighty patients were admitted during the study period however only those patients with a single admission were included for analysis (n=74). Thirty per cent (22/74) of patients were prescribed a benzodiazepine or z-hypnotics at discharge; 14 of whom received ‘long-term’ benzodiazepine and z-hypnotics i.e. continued use over the 12 month period. Seven patients received a combination of anxiolytics and hypnotics (e.g., diazepam plus temazepam or zopiclone). Long-term use was associated with a non-significant increase in median benzodiazepine or z-hypnotic dose, expressed as diazepam equivalents. Conclusions: One in three patients were prescribed a benzodiazepine or z-hypnotics at discharge with 1 in 5 receiving continuous long-term treatment (prescriptions) for 12 months post-discharge. As chronic long-term B-Z prescribing and use still remains an issue, future strategies using routine patient-level prescribing data may support prescribers to review and minimise inappropriate long-term prescribing.

Keywords
Benzodiazepines; Patient Discharge; Practice Patterns, Physicians'; Psychiatric Department, Hospital; Psychiatry; Retrospective Studies; United Kingdom

Journal
Pharmacy Practice: Volume 16, Issue 3