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%

Adjunctive lithium + antipsychotics vs placebo/no adjunctive treatment + antipsychotics

Clinically significant response on positive symptoms at least 50% MS improvement · schizophrenia

Adjunctive lithium + antipsychotics showed no clear difference in clinically significant response on positive symptoms at least 50% MS… compared with placebo/no adjunctive treatment + antipsychotics (low certainty).

1 finding from 1 review

Reduced dose of antipsychotics vs antipsychotic maintenance

Tardive dyskinesia: No clinically important improvement · female and male 42 (mean) years old patients with schizophrenia or schizoaffective disorder and antipsychotic‐induced tardive dyskinesia

It is very uncertain whether reduced dose of antipsychotics changes tardive dyskinesia: no clinically important improvement compared with antipsychotic maintenance (very low certainty).

1 finding from 1 review

Reduced dose of antipsychotics vs antipsychotic maintenance

Tardive dyskinesia: Deterioration of symptoms · female and male 42 (mean) years old patients with schizophrenia or schizoaffective disorder and antipsychotic‐induced tardive dyskinesia

It is very uncertain whether reduced dose of antipsychotics changes tardive dyskinesia: deterioration of symptoms compared with antipsychotic maintenance (very low certainty).

1 finding from 1 review

Reduced dose of antipsychotics vs antipsychotic maintenance

General mental state: relapse · female and male 42 (mean) years old patients with schizophrenia or schizoaffective disorder and antipsychotic‐induced tardive dyskinesia

It is very uncertain whether reduced dose of antipsychotics changes general mental state: relapse compared with antipsychotic maintenance (very low certainty).

1 finding from 1 review

Reduced dose of antipsychotics vs antipsychotic maintenance

Leaving the study early · female and male 42 (mean) years old patients with schizophrenia or schizoaffective disorder and antipsychotic‐induced tardive dyskinesia

It is very uncertain whether reduced dose of antipsychotics changes acceptability of the treatment: leaving the study early compared with antipsychotic maintenance (very low certainty).

1 finding from 1 review

Reduced dose of antipsychotics vs antipsychotic maintenance

Social confidence, social inclusion, social networks, or personalised quality of life ‐ not reported · female and male 42 (mean) years old patients with schizophrenia or schizoaffective disorder and antipsychotic‐induced tardive dyskinesia
1 finding from 1 review

Adjunctive carbamazepine + antipsychotics vs placebo/no adjunctive treatment + antipsychotics

Leaving the study early · patients with schizophrenia

It is very uncertain whether adjunctive carbamazepine + antipsychotics changes acceptability of treatment Leaving the study early due to any reason compared with placebo/no adjunctive treatment + antipsychotics (very low certainty).

1 finding from 1 review

Adjunctive carbamazepine + antipsychotics vs placebo/no adjunctive treatment + antipsychotics

Mental state: No clinically important improvement · patients with schizophrenia

Adjunctive carbamazepine + antipsychotics showed no clear difference in no clinically important change in general mental state Scale used:… compared with placebo/no adjunctive treatment + antipsychotics (low certainty).

1 finding from 1 review

ADJUNCTIVE BENZODIAZEPINES + ANTIPSYCHOTICS vs placebo/no adjunctive treatment + antipsychotics

No clinically important response to treatment ‐ ultra short term (at 12 hours) · patients with schizophrenia

It is very uncertain whether ADJUNCTIVE BENZODIAZEPINES + ANTIPSYCHOTICS changes no clinically important response to treatment ‐ ultra short term (at… compared with PLACEBO/NO ADJUNCTIVE TREATMENT + ANTIPSYCHOTICS (very low certainty).

2 findings from 1 review

ADJUNCTIVE BENZODIAZEPINES + ANTIPSYCHOTICS vs placebo/no adjunctive treatment + antipsychotics

No clinically important response to treatment ‐ short term · patients with schizophrenia

It is very uncertain whether ADJUNCTIVE BENZODIAZEPINES + ANTIPSYCHOTICS changes no clinically important response to treatment ‐ short term (3 weeks… compared with PLACEBO/NO ADJUNCTIVE TREATMENT + ANTIPSYCHOTICS (very low certainty).

1 finding from 1 review

ADJUNCTIVE BENZODIAZEPINES + ANTIPSYCHOTICS vs placebo/no adjunctive treatment + antipsychotics

Unacceptability of treatment (drop-outs / leaving study early) · patients with schizophrenia

It is very uncertain whether ADJUNCTIVE BENZODIAZEPINES + ANTIPSYCHOTICS changes leaving the study early due to any reason (overall acceptability of… compared with PLACEBO/NO ADJUNCTIVE TREATMENT + ANTIPSYCHOTICS (very low certainty).

1 finding from 1 review

ADJUNCTIVE BENZODIAZEPINES + ANTIPSYCHOTICS vs placebo/no adjunctive treatment + antipsychotics

Adverse effects (drop‐outs due to adverse effects4) · patients with schizophrenia

It is very uncertain whether ADJUNCTIVE BENZODIAZEPINES + ANTIPSYCHOTICS changes leaving the study early due to adverse effects (overall tolerability… compared with PLACEBO/NO ADJUNCTIVE TREATMENT + ANTIPSYCHOTICS (very low certainty).

1 finding from 1 review