# Acute Agitation Management: De-escalation and Pharmacotherapy

## Introduction

Acute agitation is one of the most common and challenging presentations in psychiatric emergency settings. Agitation exists on a spectrum from anxiety and restlessness to overt aggression and violence. The goal of management is to **ensure safety** for the patient and staff, **identify and treat the underlying cause**, and use the **least restrictive intervention** necessary. Verbal de-escalation should always be attempted first, with pharmacological and physical interventions reserved for situations where verbal approaches are insufficient.

## Defining Agitation

**Agitation**: excessive psychomotor activity associated with internal tension, ranging from fidgeting to frank aggression. Distinguished from **aggression** (intent to harm) and **violence** (physical acts of harm) Etiologies include psychiatric illness, substance intoxication/withdrawal, medical conditions, pain, and environmental factors. Common underlying conditions: psychosis, mania, delirium, intoxication (stimulants, PCP, alcohol), personality disorders, traumatic brain injury.

## Verbal De-escalation

### Principles (Project BETA Guidelines)

De-escalation is the **first-line intervention** for all agitated patients. The goal is to help the patient regain control over their emotions and behavior. Effective de-escalation can prevent the need for medications or restraints.

### Ten Domains of De-escalation

**Respect personal space**: maintain at least two arm lengths; do not crowd the patient. **Do not be provocative**: avoid crossed arms, clenched fists, direct prolonged eye contact. **Establish verbal contact**: only one staff member should speak to the patient at a time. **Be concise**: use short, simple sentences; agitated patients cannot process complex language. **Identify wants and feelings**: "I can see you are upset. Tell me what you need.". **Listen closely**: active listening demonstrates respect and may reduce arousal. **Agree or agree to disagree**: find common ground; avoid power struggles. **Set clear limits**: state behavioral expectations calmly and respectfully. **Offer choices and optimism**: "Would you prefer to take something to help you feel calmer, or would you like to sit in a quiet room?". **Debrief the patient and staff**: after the crisis, review what happened and what could be done differently.

![Infographic showing the ten domains of verbal de-escalation as outlined in the Project BETA guidelines](/images/psychiatry/de-escalation-ten-domains.png)

## Pharmacotherapy of Acute Agitation

### General Principles

Oral medication should be offered before intramuscular (IM) administration. Choose the medication based on the **suspected etiology** of agitation. Avoid over-sedation; the goal is **calming**, not somnolence. Monitor vital signs, airway, and level of consciousness after medication administration.

| Etiology | First-Line Agent | Dose (PO/IM) | Avoid | Key Considerations |
|----------|-----------------|--------------|-------|-------------------|
| Psychosis | Olanzapine, risperidone, ziprasidone (PO); ziprasidone/haloperidol (IM) | Olanzapine 5-10 mg; ziprasidone 10-20 mg IM; haloperidol 5 mg IM | IM olanzapine + IM benzodiazepine combination | "B-52": haloperidol 5 + lorazepam 2 + diphenhydramine 50 mg IM |
| Stimulant/PCP intoxication | Benzodiazepines (lorazepam) | Lorazepam 2 mg PO/IM | Antipsychotics in PCP (anticholinergic risk) | Monitor temperature; IV fluids |
| Alcohol intoxication/withdrawal | Benzodiazepines | Per CIWA-Ar protocol | Over-sedation with respiratory depression | Distinguish intoxication from withdrawal |
| Delirium | Haloperidol, quetiapine | Haloperidol 0.5-2 mg; quetiapine 25-50 mg | Benzodiazepines (worsen delirium) | Exception: alcohol/sedative withdrawal |
| Elderly | Low-dose haloperidol or lorazepam | Haloperidol 0.5-1 mg; lorazepam 0.5-1 mg | Standard adult doses | Consider pain, UTI, constipation as cause |

### Agitation Due to Psychosis

**First-line**: oral second-generation antipsychotic (olanzapine 5-10 mg, risperidone 2 mg, ziprasidone 20 mg) **IM options**: ziprasidone 10-20 mg IM, olanzapine 10 mg IM, haloperidol 5 mg IM. **Do not combine IM olanzapine and IM benzodiazepines** due to risk of cardiorespiratory depression. Haloperidol 5 mg IM + lorazepam 2 mg IM + diphenhydramine 50 mg IM (the classic "B-52" or modified combinations) remains widely used.

### Agitation Due to Substance Intoxication

**Stimulant or PCP intoxication**: benzodiazepines are first-line (lorazepam 2 mg PO/IM); avoid antipsychotics in PCP intoxication due to anticholinergic risk. **Alcohol intoxication**: benzodiazepines if withdrawal is suspected; antipsychotics if psychotic features present; monitor closely for respiratory depression. **Alcohol withdrawal**: benzodiazepines per CIWA-Ar protocol.

### Agitation Due to Delirium

**Identify and treat the underlying medical cause**. Antipsychotics are first-line: haloperidol 0.5-2 mg PO/IM, or quetiapine 25-50 mg PO for milder cases. Avoid benzodiazepines (worsen delirium) **except** in alcohol/sedative withdrawal and hepatic encephalopathy. Non-pharmacological measures: reorientation, lighting, family presence, minimize tethers.

### Agitation in the Elderly

Use **lower doses**: haloperidol 0.5-1 mg, lorazepam 0.5-1 mg. Higher sensitivity to extrapyramidal side effects and over-sedation. Consider underlying pain, urinary retention, constipation, or infection as precipitants.

![Table comparing pharmacological options for acute agitation by etiology, including medication, dose, route, and onset of action](/images/psychiatry/agitation-pharmacotherapy-table.png)

## Physical Restraint

Used only as a **last resort** when the patient poses an imminent risk of harm to self or others and all other interventions have failed. Must be ordered by a physician and include time-limited orders (typically 4 hours for adults) **Continuous monitoring** is required: vital signs, circulation, respiration, mental status. Restraints must be reassessed and removed at the earliest safe opportunity. **Positional asphyxia** risk: never restrain a patient face down; monitor respiratory status continuously. Document the clinical justification, alternatives attempted, and patient's response.

## Staff Safety

Always have an exit route; never position yourself between the patient and a locked door. Use a team approach for high-risk situations. Train all clinical staff in de-escalation, safe restraint application, and post-incident debriefing. Recognize that staff trauma from workplace violence is common; provide support resources.

![Diagram illustrating proper positioning and safety protocols during physical restraint application](/images/psychiatry/restraint-safety-protocol.png)

## Key Clinical Pearls

Verbal de-escalation is the single most important skill in managing acute agitation; it prevents escalation to restraints in the majority of cases and preserves the therapeutic relationship. Always consider the underlying etiology of agitation before choosing a pharmacological agent; benzodiazepines and antipsychotics have different risk profiles depending on the cause. Never combine IM olanzapine with IM benzodiazepines due to the risk of respiratory arrest. Physical restraint carries real medical risk, including positional asphyxia and death; it should be used only when all other interventions have failed, with continuous monitoring and time-limited orders.

## References

1. Richmond JS, Berlin JS, Fishkind AB, et al. Verbal de-escalation of the agitated patient: consensus statement of the American Association for Emergency Psychiatry Project BETA. *West J Emerg Med*. 2012;13(1):17-25.
2. Wilson MP, Pepper D, Currier GW, Holloman GH, Feifel D. The psychopharmacology of agitation: consensus statement of the American Association for Emergency Psychiatry Project BETA. *West J Emerg Med*. 2012;13(1):26-34.
3. Garriga M, Pacchiarotti I, Kasper S, et al. Assessment and management of agitation in psychiatry: expert consensus. *World J Biol Psychiatry*. 2016;17(2):86-128.
4. Knox DK, Holloman GH. Use and avoidance of seclusion and restraint: consensus statement of the American Association for Emergency Psychiatry. *West J Emerg Med*. 2012;13(1):35-40.