Medications for Agitation and Psychosis in Dementia: A Caregiver’s Guide to Risks and Realistic Use

When a loved one with moderate to severe dementia becomes agitated, aggressive, or experiences hallucinations, medications may be considered—but only after non-drug approaches have been tried and as part of a careful, doctor-led plan. No medication is FDA-approved specifically for agitation in dementia, and antipsychotics carry serious risks, including increased mortality. This guide explains which drugs are sometimes used, their potential benefits and harms, and how to work with your clinician to make the safest, most informed choice for your family member.

Key points

No medication is FDA-approved for agitation in dementia; all use is off-label and requires caution.
Antipsychotics carry a black box warning for increased mortality in older adults with dementia—use only when non-drug options fail and symptoms are severe.
Always rule out pain, infection, and medication side effects before starting a new drug for agitation.
Start any medication at the lowest possible dose, use for the shortest time, and have a plan to taper off.
Antidepressants like citalopram may help with irritability but have heart risks at higher doses; never exceed 20 mg/day in older adults.
Benzodiazepines are generally not recommended for routine agitation due to risks of falls, confusion, and paradoxical reactions.
Non-drug strategies—like music, routine, and environmental calm—should always be the foundation of care, even when medications are used.

Why Medications Are Not a First-Line Solution

Agitation and psychosis in dementia—such as hitting, yelling, paranoia, or seeing things that aren’t there—are often the brain’s way of expressing unmet needs, pain, or confusion. Research shows that non-drug strategies like adjusting the environment, addressing pain, and using calming routines are the preferred first step. Medications should only be considered when these approaches fail and the behavior poses a risk to the person or others, or severely interferes with care. Even then, the goal is not to sedate but to reduce distress enough to allow the person to engage in daily life and relationships.

The Reality of FDA Approval and Off-Label Use

It may surprise you to learn that there are zero FDA-approved medications specifically for treating agitation in dementia. The drugs used—antipsychotics, antidepressants, mood stabilizers, and others—are prescribed 'off-label,' meaning they are approved for other conditions (like schizophrenia or depression) but used for dementia symptoms based on clinical experience and some research. This off-label use is legal and common, but it means you and your doctor must be extra cautious about side effects, especially in older adults who may be more sensitive to medications.

The Core Risk: Antipsychotics and the Black Box Warning

Antipsychotic medications, including risperidone, olanzapine, quetiapine, and aripiprazole, are the most studied drugs for agitation and psychosis in dementia. However, they carry a 'black box' warning from the FDA—the strongest safety warning—because they are associated with an increased risk of death in older adults with dementia-related psychosis. This risk is due to events like stroke, heart failure, and infections. Despite this, they are sometimes used short-term when symptoms are severe and non-drug options have failed, at the lowest effective dose and for the shortest possible time.

Other Medication Options: Antidepressants, Mood Stabilizers, and More

For milder agitation or when psychosis is not the main issue, doctors may try antidepressants like citalopram (Celexa) or sertraline (Zoloft), which can help with irritability and anxiety. However, citalopram at doses above 20 mg per day can increase the risk of dangerous heart rhythm problems, so the FDA recommends a maximum of 20 mg for older adults. Mood stabilizers like valproate have been studied but show limited effectiveness and significant side effects, including sedation and gastrointestinal issues. A newer option is dextromethorphan/quinidine (Nuedexta), originally for pseudobulbar affect, which has shown some benefit for agitation in trials, but the quinidine component can interact with many other drugs, so careful monitoring is essential.

General caregiving information, not medical advice. Check medications and major care changes with your clinician.

Step-by-step

Try non-drug approaches first: address pain, hunger, thirst, or need for bathroom; modify environment to reduce overstimulation; use calm reassurance or redirection.
If medications are considered, confirm doctor-led plan focused on off-label use, as no drug is FDA-approved for dementia-related agitation.
Explicitly discuss risks of antipsychotics (e.g., risperidone, olanzapine, quetiapine, aripiprazole) including FDA black-box warning of increased mortality, before any prescription.

What not to do

Do not use antipsychotics as first-line treatment for agitation or psychosis without prior non-drug attempts.
Do not assume any medication is specifically approved for dementia agitation; all are off-label.
Do not minimize the black-box warning on antipsychotics—it reflects serious, documented risk of death.

Practical tools

Non-Drug Intervention Checklist
A caregiver reference to systematically assess and address unmet needs (pain, hunger, thirst, toileting, overstimulation) before considering medication.
Antipsychotic Risk Fact Sheet
Concise summary of FDA black-box warning, specific drugs (risperidone, olanzapine, quetiapine, aripiprazole), and associated mortality risk in dementia patients.
Doctor Discussion Prompt List
Guides caregiver to ask: Is this off-label? What non-drug steps have been tried? What is the specific symptom target? What are the exact mortality risks for this patient?

What medications are used for agitation and aggression in Alzheimer's, in what order, and what are the risks?

First, always check for physical causes like pain, infection, or medication side effects. Then try non-drug approaches like a calm environment, reassuring touch, or a favorite activity before discussing any medication with the doctor.

What steps should I take to address agitation before considering medication?

Start by ruling out pain, infection, or discomfort, and ensure basic needs like hunger or bathroom breaks are met. Offer reassurance, reduce noise and clutter, and use a calm, simple approach before considering a prescription.

Discuss with your clinician

Ask your doctor: 'What is the exact target symptom we are treating with this medication, and how will we measure if it is working?'

Discuss: 'Given my loved one’s age, other health conditions, and other medications, what is the specific risk of this drug for them? Can you explain the black box warning in plain language?'

Ask: 'Is there a plan to try a lower dose or a different drug if this one causes side effects? How long will we try it before deciding it is not working?'

Inquire: 'Are there any drug interactions I should worry about, especially with heart medications, blood thinners, or other psych meds?'

Request: 'Can we schedule a follow-up in two weeks to review side effects and effectiveness, and discuss when we might taper off?'

If citalopram is suggested, ask: 'Have you checked my loved one’s potassium and magnesium levels, and do we need an EKG to monitor the heart rhythm?'

If dextromethorphan/quinidine (Nuedexta) is proposed, ask: 'How will we monitor for drug interactions, especially with other medications that affect the liver enzyme CYP2D6?'