Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

427 questions · 437 findings · 29 reviews · Schizophrenia

No studies found 77 · 17.6%GRADE not reported 61 · 14%Very low 130 · 29.7%Low 103 · 23.6%Moderate 54 · 12.4%High 12 · 2.7%

RISPERIDONE vs ZIPRASIDONE ‒ long‐term data (> 12 months)

Leaving the study early · people with both severe mental illness and substance misuse

RISPERIDONE showed no clear difference in leaving the study early: any reason compared with ZIPRASIDONE ‒ long‐term data (> 12 months) (low certainty).

1 finding from 1 review

RISPERIDONE vs CLOZAPINE ‐ all data short term

Substance use: improvement ‒ (at least 20% reduction in use, TLFB scale) · people with both severe mental illness and substance misuse

It is very uncertain whether RISPERIDONE changes substance use: improvement ‒ (at least 20% reduction in use, TLFB… compared with CLOZAPINE ‐ all data short term (very low certainty).

1 finding from 1 review

RISPERIDONE vs CLOZAPINE ‐ all data short term

Adherence to antipsychotic medication: discontinued medication · people with both severe mental illness and substance misuse

It is very uncertain whether RISPERIDONE changes adherence to antipsychotic medication: discontinued medication compared with CLOZAPINE ‐ all data short term (very low certainty).

1 finding from 1 review

RISPERIDONE vs CLOZAPINE ‐ all data short term

Adverse effects: any observed extrapyramidal symptoms ‐ short term (up to 6 months) · people with both severe mental illness and substance misuse

It is very uncertain whether RISPERIDONE changes adverse effects. 1. Movement disorders ‐ any extrapyramidal compared with CLOZAPINE ‐ all data short term (very low certainty).

1 finding from 1 review

RISPERIDONE vs CLOZAPINE ‐ all data short term

Leaving the study early · people with both severe mental illness and substance misuse

It is very uncertain whether RISPERIDONE changes leaving the study early ‒ any reason compared with CLOZAPINE ‐ all data short term (very low certainty).

1 finding from 1 review

FLUPHENAZINE (ORAL) vs QUETIAPINE

Clinically important response (defined by study) ‐ short term (up to 12 weeks) decreased rate of BPRS score < 20% · patients with schizophrenia

It is very uncertain whether FLUPHENAZINE (ORAL) changes clinically important response (defined by study) ‐ short term (up to… compared with QUETIAPINE (very low certainty).

1 finding from 1 review