Thomas 2002.

Methods	Double‐blind, cross‐over study
Participants	16 people suffering from schizophrenia‐like psychosis of epilepsy
Interventions	Olanzapine (10 mg/day) compared with haloperidol (12 mg/day)
Outcomes	The participants were evaluated with electroencephalogram recording and Brief Psychiatric Rating Scale at baseline and after 3 and 6 months
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	As only abstract available, no details provided to enable a judgement about the risk of bias