Huang 1997.

Methods	Allocation: randomised ‐ no further details Blinding: double blind. Duration: 8 weeks. Setting: multicenter.
Participants	Diagnosis: schizophrenia. N=205. Age: mean ˜35 years, range 18‐60. Sex: 123 M, 82 F. History: hospitalised.
Interventions	1. Loxapine: dose range: 50‐300 mg. N=104. 2. Chlorpromazine: dose range: 75‐600 mg. N=101.
Outcomes	Mental state: BPRS. Global effect: CGI. Adverse effects: TESS. Physiological effects: EEG. Unable to use ‐ Laboratory tests (no data).
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	B ‐ Unclear