Schlosberg 1978.

Methods	Allocation: randomised. Blindness: double. Duration: 12 months (9 months depot, 3 months placebo, preceeded by 2 week wash‐out period).
Participants	Diagnosis: schizophrenia. History: duration ill mean 17 years, 'highly resistant to treatment'. N=75, 12 in placebo trial. Age: mean 42 years. Sex: not reported. Setting: not reported.
Interventions	1. Pipothiazine palmitate: dose range 6.25‐50 mg/IM/month. N=30. 2. Fluphenazine decanoate: dose range 6.25‐50 mg/IM/month. N=30.
Outcomes	Global impression. Leaving the study. Adverse effects. Unable to use ‐ Mental state: BPRS (no SD). Behaviour: NOSIE (no SD). Social functioning (no usable data).
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear