Evaluation of Defined Daily Dose percentage of British National Formulary maximum and chlorpromazine equivalents in antipsychotic drug utilization

摘要

ObjectiveThe present study was carried out to investigate and compare the three methods for calculating total antipsychotic dose among outpatients with schizophrenia attending primary psychiatric health care centers. The three methods were: Defined Daily Doses (DDDs), chlorpromazine equivalents (CPZeq) and percentages of the British National Formulary (BNF) maximum.