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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

2,589 questions in 168 reviews · Schizophrenia

current versions
No studies 601 · 23.2%Ungraded 446 · 17.2%Very low 721 · 27.8%Low 505 · 19.5%Moderate 274 · 10.6%High 42 · 1.6%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Combinations of antipsychotic drugs vs single antipsychotic drugs
Leaving the study early · schizophrenia or related disorders
Antipsychotic combinations for schizophrenia (2017) · Cochrane
RR 0.9 [0.76, 1.07]43 studies · 3137 participantsLow
Combinations of antipsychotic drugs vs single antipsychotic drugs
Service utilisation: Hospital admission · schizophrenia or related disorders
Antipsychotic combinations for schizophrenia (2017) · Cochrane
RR 0.96 [0.36, 2.55]3 studies · 202 participantsVery low
Combinations of antipsychotic drugs vs single antipsychotic drugs
Service utilisation: Change in hospital status ‐ not reported · schizophrenia or related disorders
Antipsychotic combinations for schizophrenia (2017) · Cochrane
no estimate extractedNRNo studies
Combinations of antipsychotic drugs vs single antipsychotic drugs
Adverse events: Serious event or requiring discontinuation · schizophrenia or related disorders
Antipsychotic combinations for schizophrenia (2017) · Cochrane
RR 1.05 [0.65, 1.69]30 studies · 2398 participantsVery low
Combinations of antipsychotic drugs vs single antipsychotic drugs
Quality of life · schizophrenia or related disorders
Antipsychotic combinations for schizophrenia (2017) · Cochrane
no estimate extracted4 studies · 398 participantsUngraded
HALOPERIDOL vs PLACEBO/NIL
Tranquillisation or asleep not asleep at 2 hours · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 0.88 [0.82, 0.95]2 studies · 220 participantsVery low
HALOPERIDOL vs OTHER ANTIPSYCHOTIC: a. ARIPIPRAZOLE
Global outcomes: need for benzodiazepine 2 · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 1.26 [0.74, 2.16]2 studies · 477 participantsVery low
HALOPERIDOL vs COMBINATIONS: a. HALOPERIDOL + LEVOMEPROMAZINE
Specific behaviours ‐ threat or injury to self or others ‐ not reported · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: a. HALOPERIDOL + LEVOMEPROMAZINE
Global outcome: general ‐ no overall improvement · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 8.18 [0.5, 133.66]1 study · 19 participantsVery low
HALOPERIDOL vs COMBINATIONS: a. HALOPERIDOL + LEVOMEPROMAZINE
Adverse effect: any serious, specific ‐ not reported · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: a. HALOPERIDOL + LEVOMEPROMAZINE
Economic outcome ‐ not measured · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: b. HALOPERIDOL + LORAZEPAM
Tranquillisation or asleep ‐ not asleep by 3 hours · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 1.83 [1.11, 3.02]1 study · 67 participantsVery low
HALOPERIDOL vs COMBINATIONS: b. HALOPERIDOL + LORAZEPAM
Repeated need for rapid tranquillisation ‐ needing additional injection during 24 hours · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 1.05 [0.87, 1.27]1 study · 67 participantsVery low
HALOPERIDOL vs COMBINATIONS: b. HALOPERIDOL + LORAZEPAM
Specific behaviour ‐ threat or injury to self or others ‐ not reported · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: b. HALOPERIDOL + LORAZEPAM
Global outcome: no overall improvement ‐ at 30 minutes · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 2.67 [1.25, 5.68]1 study · 45 participantsVery low
HALOPERIDOL vs COMBINATIONS: b. HALOPERIDOL + LORAZEPAM
Adverse effects: Specific ‐ dystonia (only reported if occurred in ≥9%) during 24 hours · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 8.25 [0.46, 147.45]1 study · 67 participantsVery low
HALOPERIDOL vs COMBINATIONS: b. HALOPERIDOL + LORAZEPAM
Adverse effects: Specific ‐ hypertonia/rigidity (only reported if occurred in ≥9%) during 24 hours · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 2.74 [0.3, 25.05]1 study · 67 participantsVery low
HALOPERIDOL vs OTHER ANTIPSYCHOTIC: a. ARIPIPRAZOLE
Adverse effects: any serious, specific ‐ dystonia during 24 hours · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 6.63 [1.52, 28.86]2 studies · 477 participantsVery low
HALOPERIDOL vs COMBINATIONS: b. HALOPERIDOL + LORAZEPAM
Economic outcome ‐ not reported · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: c. HALOPERIDOL + MIDAZOLAM
Tranquillisation or asleep ‐ not reported · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: c. HALOPERIDOL + MIDAZOLAM
Repeated need for tranquillisation · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 0.88 [0.69, 1.13]1 study · 60 participantsVery low
HALOPERIDOL vs COMBINATIONS: c. HALOPERIDOL + MIDAZOLAM
Specific behaviour ‐ agitation · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extracted1 study · 60 participantsVery low
HALOPERIDOL vs COMBINATIONS: c. HALOPERIDOL + MIDAZOLAM
Global outcome · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 0.29 [0.13, 0.61]1 study · 60 participantsVery low
HALOPERIDOL vs COMBINATIONS: c. HALOPERIDOL + MIDAZOLAM
Adverse effects · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 1.67 [0.44, 6.36]1 study · 60 participantsVery low
HALOPERIDOL vs COMBINATIONS: c. HALOPERIDOL + MIDAZOLAM
Economic outcome ‐ not reported · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: d. HALOPERIDOL + PROMETHAZINE
Tranquillisation or asleep · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 1.6 [1.18, 2.16]1 study · 316 participantsModerate
HALOPERIDOL vs COMBINATIONS: d. HALOPERIDOL + PROMETHAZINE
Repeated need for tranquillisation · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 0.78 [0.43, 1.41]2 studies · 376 participantsVery low
HALOPERIDOL vs COMBINATIONS: d. HALOPERIDOL + PROMETHAZINE
Specific behaviours ‐ aggression · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 1.06 [0.68, 1.65]1 study · 316 participantsModerate
HALOPERIDOL vs OTHER ANTIPSYCHOTIC: a. ARIPIPRAZOLE
Economic outcome ‐ not reported · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: d. HALOPERIDOL + PROMETHAZINE
Global outcomes · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 1.21 [0.84, 1.76]1 study · 316 participantsModerate
HALOPERIDOL vs COMBINATIONS: d. HALOPERIDOL + PROMETHAZINE
Adverse effects: specific ‐ acute dystonia · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 19.48 [1.14, 331.92]1 study · 316 participantsLow
HALOPERIDOL vs COMBINATIONS: d. HALOPERIDOL + PROMETHAZINE
Adverse effects: specific ‐ seizure · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 2.05 [0.19, 22.39]1 study · 316 participantsLow
HALOPERIDOL vs COMBINATIONS: d. HALOPERIDOL + PROMETHAZINE
Economic outcome ‐ not reported · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: e. HALOPERIDOL + RISPERIDONE
Tranquillisation or asleep ‐ not reported · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: e. HALOPERIDOL + RISPERIDONE
Repeated need for tranquillisation ‐ not reported · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: e. HALOPERIDOL + RISPERIDONE
Specific behaviour ‐ agitation · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extracted1 study · 100 participantsLow
HALOPERIDOL vs COMBINATIONS: e. HALOPERIDOL + RISPERIDONE
Global outcome · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 0.38 [0.11, 1.33]1 study · 100 participantsLow
HALOPERIDOL vs COMBINATIONS: e. HALOPERIDOL + RISPERIDONE
Adverse effects: specific · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 0.88 [0.48, 1.6]1 study · 100 participantsLow
HALOPERIDOL vs COMBINATIONS: e. HALOPERIDOL + RISPERIDONE
Economic outcome ‐ not reported · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs OTHER ANTIPSYCHOTIC: b. CHLORPROMAZINE
Tranquillisation or asleep Not tranquil or asleep · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 1.93 [1.04, 3.6]1 study · 39 participantsVery low
HALOPERIDOL vs COMBINATIONS: f. OLANZAPINE + MAGNESIUM VALPROATE
Tranquillisation or asleep ‐ not reported · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: f. OLANZAPINE + MAGNESIUM VALPROATE
Repeated need for tranquillisation ‐ not reported · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: f. OLANZAPINE + MAGNESIUM VALPROATE
Specific behaviour ‐ agitation · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extracted1 study · 64 participantsVery low
HALOPERIDOL vs COMBINATIONS: f. OLANZAPINE + MAGNESIUM VALPROATE
Global outcome · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 1.06 [0.38, 2.95]1 study · 64 participantsVery low
HALOPERIDOL vs COMBINATIONS: f. OLANZAPINE + MAGNESIUM VALPROATE
Adverse effects · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 3.06 [1.62, 5.79]1 study · 64 participantsVery low
HALOPERIDOL vs COMBINATIONS: f. OLANZAPINE + MAGNESIUM VALPROATE
Economic outcome ‐ not reported · psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: g. QUETIAPINE + MAGNESIUM VALPROATE
Tranquillisation or asleep ‐ not reported · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: g. QUETIAPINE + MAGNESIUM VALPROATE
Repeated need for tranquillisation ‐ not reported · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extractedNRNo studies
HALOPERIDOL vs COMBINATIONS: g. QUETIAPINE + MAGNESIUM VALPROATE
Specific behaviours ‐ agitation at 3 days average endpoint score (PANSS‐EC) · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
no estimate extracted1 study · 60 participantsVery low
HALOPERIDOL vs COMBINATIONS: g. QUETIAPINE + MAGNESIUM VALPROATE
Global effect Specific behaviour ‐ agitation ‐ no effect based on PANSS‐EC (< 25% decrease) · patients with psychosis‐induced aggression or agitation
Haloperidol for psychosis‐induced aggression or agitation (rapid tranquillisation) (2017) · Cochrane
RR 1.17 [0.44, 3.06]1 study · 60 participantsVery low