Vereecken 1972.

Methods	Allocation: randomised. Blindness: double. Duration: 11 weeks.
Participants	Diagnosis: schizophrenia (DSM II). History: duration ill mean 34 years, all on depot prior to trial. N=26. Age: range 25‐75 years, mean 61. Sex: all female. Setting: hospitalised.
Interventions	1. Pipothiazine undecylenate: dose mean 103.8 mg/IM/biweekly. N=13. 2. Fluspirilene: dose mean 9.46 mg/IM/week. N=13. Doses individually tailored.
Outcomes	Leaving the study early. Additional medication. Adverse effects. Unable to use ‐ Occupational therapy (data not usuable). Blood samples (data not usable).
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear