Brauzer 1968.

Methods	Allocation: randomly assigned, no further details. Blindness: double (identical 10cc multiple dose vials). Design: 2 parallel groups, single centre. Duration: 72 h. Analysis: intention‐to‐treat. Country: USA.
Participants	Diagnosis: schizophrenia (DSM). N=36. Age: at least 21 years. Sex: M 17, F 19. Setting: hospital. History: acute patients, recently hospitalised **include one chronic brain syndrome with psychosis.
Interventions	1. Trifluoperazine: dose maximum 20 mg/day IM. N=18. 2. Thiothixene: dose maximum 20 mg/day IM. N=18.
Outcomes	Global state. Side effects. Use of antiparkinson agents. Unable to use ‐ Mental state: (IMPS; BPRS ‐ no data). Physiological measures ‐ no data available.
Notes	** Mixed diagnosis.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear