Gallant 1972.

Methods	Allocation: randomly assigned, no further details. Blindness: no data#. Design: 2 parallel groups, single centre. Duration: 8 weeks (preceded by 2 weeks of baseline examinations, 25 days washout). Analysis: intention‐to‐treat. Country: USA.
Participants	Diagnosis: schizophrenia, no further details. N=24. Age: median ˜ 39.5 years. Sex: males and females, no further details. Setting: hospital. History: chronic Illness.
Interventions	1. Trifluoperazine: dose 10‐100 mg/day. N=12. 2. GP‐45795 (tricyclic dibenzothiepin): dose 50‐500 mg/day. N=12.
Outcomes	Global state: (global ratings of clinical change). Side effects: (EPS, hypotension). Unable to use ‐ Mental state: (BPRS ‐ only "p" value). Behaviour: (NOSIE ‐ only "p" value). EKG. Photosensitivity skin tests. Laboratory tests.
Notes	# Blindness: no data.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear