Which medications are listed as delirium treatment?

• A. Chlorpromazine, haloperidol
• B. Dexmedetomidine hydrochloride
• C. Olanzapine
• D. Ramelteon

Answer: (A)

Delirium management often hinges on medications that quickly calm agitation and reduce psychotic features without causing heavy sedation or respiratory depression. Chlorpromazine and haloperidol are classic antipsychotics that are commonly listed for treating delirium because they can rapidly decrease agitation and behavioral disturbances seen in delirious patients. They work by blocking dopamine receptors, which helps modulate the agitation and confusion that accompany delirium, making it safer to manage the patient and continue necessary medical care.

Dexmedetomidine is a sedative used in some ICU settings to provide light, cooperative sedation and can influence delirium risk, but it isn’t typically categorized as a primary delirium treatment in standard lists. Olanzapine is another antipsychotic that can be used for delirium in certain cases, but it’s not as universally listed as a first-line option as haloperidol or chlorpromazine. Ramelteon targets sleep by acting on melatonin receptors and is used mainly for sleep disturbances and, in some studies, delirium prevention, not treatment.

So, the medications most consistently recognized for actively treating delirium symptoms in many guidelines are chlorpromazine and haloperidol.