Experience of thioridazine use before and after the Committee on Safety of Medicines warning
Aims and MethodTo describe the use of thioridazine in a population of adults with learning disabilities at the time of the warning issued by the Committee on Safety of Medicines (CSM). Also, to observe the result of discontinuation of thioridazine and to examine factors that were associated with adverse events. Retrospective case note analysis was carried out for a sample of individuals with a learning disability.ResultsOver 50% of those on regular thioridazine experienced adverse events during or following drug withdrawal. Adverse events were significantly associated with the duration of previous thioridazine prescription. Higher drug dosage and a more severe degree of learning disability may also be factors linked to poorer outcomes.Clinical ImplicationsMore caution may be required when reducing or withdrawing antipsychotic medication in this patient group.