Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Symptom severity
Systematic review	241 people 5 RCTs in this analysis	No clinically significant improvement with oral chlorpromazine (50–1800 mg/day) with oral haloperidol (2–100 mg/day) Absolute results not reported	RR 0.91 95% CI 0.73 to 1.13		Not significant
Systematic review	37 people Data from 1 RCT	Mean difference for mean Clinical Global Impression scale (CGI) Severity score with oral chlorpromazine (50–1800 mg/day) with oral haloperidol (2–100 mg/day) Absolute results not reported	Mean difference –0.2 95% CI –0.98 to +0.58		Not significant
Systematic review	37 people Data from 1 RCT	Mean Brief Psychiatric Rating Scale (BPRS) total score with oral chlorpromazine (50–1800 mg/day) with oral haloperidol (2–100 mg/day) Absolute results not reported	Mean difference –2.70 95% CI –7.28 to +1.88		Not significant