Rubin 1971.

Methods	Allocation: randomly assigned, no further description. Blindness: double (identical capsules). Design: 2 parallel groups. Duration: minimum 5 days, maximum 79 days. Analysis: intention‐to‐treat. Country: USA.
Participants	Diagnosis: *psychotic patients: paranoid schizophrenics (13); undifferentiated schizophrenia (4); Manic‐depressive (1). N=18. Age: range 26‐49 years, mean 37.5 years. Sex: only male. Setting: hospital. History: acute illness.
Interventions	1. Trifluoperazine: range 6‐60 mg/day. N=8. 2. Haloperidol: range 2‐20 mg/day. N=10. 3 patients receiving TFP began group psychotherapy.
Outcomes	Global state: (Mental Status Schedule; discharged from hospital. Unable to use ‐ Average time of onset of Therapeutic Effect: (only patients who improved).
Notes	**Mixed diagnosis.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear