Bishop 1966.

Methods	Allocation: "prearranged randomised procedure", no further details. Blindeness: double, (identical capsules supplied in individual bottles only with the subjects study number). Design: 2 parallel groups, two centres. Duration: 30 days. Analysis: intention‐to‐treat. Country: USA.
Participants	Diagnosis: schizophrenia, no further information. N=40. Age: range 18‐54 years, mean 34.3 years. Sex: M 21, F 19. Setting: hospital. History: newly admitted patients, trifluoperazine group > paranoid diagnosis.
Interventions	1. Trifluoperazine: range 5‐30 mg/day. N=21. 2. Thiothixene: range 5‐30 mg/day. N=19.
Outcomes	Global state: (global ratings of improvement). Side effects: (EPS). Unable to use ‐ Mental state: (BPRS, only graphs).
Notes	#The groups differ on sex, age and diagnostic type.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear