When haloperidol and midazolam were compared with olanzapine , there was some evidence the combination was superior in terms of improvement , sedation and behaviour .
There were relatively little good data and most trials are too small to highlight differences in either positive or negative effects .
Adding a benzodiazepine to other drugs does not seem to confer clear advantage and has potential for adding unnecessary adverse effects .
Sole use of older antipsychotics unaccompanied by anticholinergic drugs seems difficult to justify .
BACKGROUND Acute psychotic illness , especially when associated with agitated or violent behaviour , can require urgent pharmacological tranquillisation or sedation .
In several countries , clinicians often use benzodiazepines ( either alone or in combination with antipsychotics ) for this outcome .
OBJECTIVES To estimate the effects of benzodiazepines , alone or in combination with antipsychotics , when compared with placebo or antipsychotics , alone or in combination with antihistamines , to control disturbed behaviour and reduce psychotic symptoms .
Parenteral lorazepam versus parenteral haloperidol for the control of psychotic disruptive behavior.
In a double-blind , prospect i ve study , 2 mg of intramuscular lorazepam and 5 mg of intramuscular haloperidol were equally effective in controlling aggression , agitation , and assaultive behavior .  Although lorazepam and haloperidol produced an equivalent mean decrease in aggression , significantly more subjects who received lorazepam had a greater decrease in aggression ratings than haloperidol recipients ; this effect was independent of sedation . Lorazepam produced significantly fewer extrapyramidal symptoms . These data support the current clinical practice of using lorazepam ( alone , or in combination with a neuroleptic ) for control of acute aggressive and assaultive behavior
When haloperidol and midazolam were compared with olanzapine , there was some evidence the combination was superior in terms of improvement , sedation and behaviour .
There were relatively little good data and most trials are too small to highlight differences in either positive or negative effects .
Adding a benzodiazepine to other drugs does not seem to confer clear advantage and has potential for adding unnecessary adverse effects .
Sole use of older antipsychotics unaccompanied by anticholinergic drugs seems difficult to justify .
BACKGROUND Acute psychotic illness , especially when associated with agitated or violent behaviour , can require urgent pharmacological tranquillisation or sedation .
In several countries , clinicians often use benzodiazepines ( either alone or in combination with antipsychotics ) for this outcome .
OBJECTIVES To estimate the effects of benzodiazepines , alone or in combination with antipsychotics , when compared with placebo or antipsychotics , alone or in combination with antihistamines , to control disturbed behaviour and reduce psychotic symptoms .