Abstract
We present an evaluation of antipsychotic prescribing in an inpatient psychiatry ward in Hobart, Tasmania, to establish pattern of use, alignment with other psychiatric wards orcentres and the recommendations in the Royal Australian and New Zealand College of Psychiatry Clinical Practice Guidelines, and to determine predictors of polypharmacy. A descriptive cross-sectional survey design was used. Data from 118 patients discharged from the Royal Hobart Hospital (RHH) Mental Health Inpatient Unit between 01/02/2021 to 01/08/2021 were evaluated. Antipsychotic polypharmacy (APP) was observed in 40% of patients. When low doses of adjunctive ('PRN') use of olanzapine and quetiapine were excluded, the APP proportion was 35%. APP was predicted by age and by a schizophrenia diagnosis. Long-acting injections (LAIs) were used in 46% of the patients. The most common LAI was risperidone (52%). Average daily dose of antipsychotic at the time of discharge was 529mg chlorpromazine (CPZ) equivalents. High dose antipsychotics (more than 1000mg CPZ equivalents per day) was observed in 13% of the patients. The observed prescribing practice is consistent with other clinical settings. Antipsychotic prescribing practice should, however, continue to be monitored to ensure adherence to best practice guidelines.
Published Version
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