Improvement of extrapyramidal symptoms following dehydroepiandrosterone (DHEA) administration in antipsychotic treated schizophrenia patients: A randomized, double-blind placebo controlled trial
Recent investigation in schizophrenia indicated dehydroepiandrosterone (DHEA) levels to be inversely correlated with extrapyramidal symptomatology (EPS). This study thus investigates the effect of DHEA administration on medication-induced EPS. Inpatients with schizophrenia or schizoaffective disorder were randomized in double-blind fashion to receive either 100 mg DHEA or placebo in addition to a constant dosage of antipsychotic medication. Parkinsonism showed a favorable effect of DHEA with a significant time effect (p < 0.0001), as well as a significant group by time interaction (p < 0.05) and with no change noted on akathisia. Change of DHEA blood levels was negatively associated with change of Parkinsonism (p < 0.05) as well as with change of total EPS ratings (p < 0.05). DHEA appears to demonstrate a significant effect on EPS, with improvement observed particularly in Parkinsonian symptoms.
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