Management of Acute Agitation

Introduction to Treatment

The American College of Emergency Physicians recommends that for the management of acute agitation, haloperidol (Haldol) and lorazepam can be readministered every 30-60 minutes as needed until adequate sedation is achieved, with monitoring of adverse effects 1, 2

Lorazepam 2-4 mg IM can be readministered every 30-60 minutes as needed, according to the American College of Emergency Physicians 1
Haloperidol 5 mg IM can be readministered every 30-60 minutes as needed, as recommended by the American College of Emergency Physicians 1, 3
The median time to sedation with lorazepam is approximately 32 minutes and with haloperidol is 28 minutes, based on guidelines from the American College of Emergency Physicians 3

The combination of haloperidol 5 mg + lorazepam 2 mg IM can be readministered every 30-60 minutes as needed, as recommended by the American College of Emergency Physicians 1, 2
This combination produces sedation more quickly than monotherapy, with less need for repeated doses, according to the American College of Emergency Physicians 4

The combination of haloperidol and lorazepam produces sedation more quickly than either medication alone, as stated by the American College of Emergency Physicians 2
In comparative studies, 96% of patients achieve adequate sedation within 4 hours with this combination, based on guidelines from the American College of Emergency Physicians 4

Vital signs, level of sedation, and adverse effects should be monitored between each administration, as recommended by the American College of Emergency Physicians 1
Patients should be monitored especially for extrapyramidal symptoms (rigidity, dystonia) with haloperidol, according to the American College of Emergency Physicians 4
Respiratory depression with lorazepam, especially with repeated doses, should be monitored, as stated by the American College of Emergency Physicians 3
Prolongation of the QT interval with haloperidol should be monitored, based on guidelines from the American College of Emergency Physicians 5

In elderly patients or those with comorbidities, initial doses and readministration intervals should be considered for reduction to 60 minutes, as recommended by the American College of Emergency Physicians 1
In patients with agitation due to medical causes (not psychiatric), the underlying cause should be identified and treated before repeating doses, according to the American College of Emergency Physicians 6

The initial dose of haloperidol 5 mg + lorazepam 2 mg IM should be administered, as recommended by the American College of Emergency Physicians 1
Response should be evaluated at 30 minutes, based on guidelines from the American College of Emergency Physicians 3
If agitation persists, the same dose can be repeated, as stated by the American College of Emergency Physicians 2
Patients should be reevaluated every 30 minutes and the dose repeated as necessary, according to the American College of Emergency Physicians 4
If there is no adequate response after 3 doses, underlying medical causes or psychiatric consultation should be considered, as recommended by the American College of Emergency Physicians 6