No, Lewy body dementia cannot be cured. The most important thing on this page is not the answer to that question: many people with this condition react severely to antipsychotic medication, and that reaction can be life-threatening. Getting the diagnosis recognised is what protects against it. Several symptoms respond well to treatment once the diagnosis is right.
No, Lewy body dementia cannot be cured. The most important thing on this page is not the answer to that question: many people with this condition react severely to antipsychotic medication, and that reaction can be life-threatening. Getting the diagnosis recognised is what protects against it. Several symptoms respond well to treatment once the diagnosis is right.
Up to half of people with Lewy body dementia have a severe sensitivity reaction to antipsychotic drugs, with sudden worsening of rigidity, confusion and reduced consciousness that can be fatal. Haloperidol and similar older agents are the greatest concern. This matters because hallucinations are a prominent early symptom, and an unrecognised case presenting to an urgent care or emergency department with hallucinations may be given exactly the wrong drug. Carry the diagnosis in writing, tell every clinician, and make sure family members know to say it. Where antipsychotic treatment is genuinely necessary, pimavanserin, quetiapine or clozapine are used cautiously and at the lowest effective level.
Cholinesterase inhibitors, particularly rivastigmine and donepezil, often help cognition, alertness and hallucinations more in this condition than in Alzheimer's disease, which is a genuinely useful fact. Levodopa can improve stiffness and slowness, though it may increase hallucinations, so it is balanced rather than maximised. Melatonin and, in some cases, clonazepam are used for the dream enactment behaviour. Orthostatic blood pressure drops, constipation and urinary symptoms are all treatable and are frequently what make daily life difficult.
Fluctuating attention that varies through the day, well-formed visual hallucinations, parkinsonian slowness and stiffness, and acting out dreams during sleep, often years before anything else. That last feature, REM sleep behaviour disorder, is one of the strongest early clues and is frequently dismissed as restlessness. Repeated falls and unexplained loss of consciousness are common. Sensitivity to antipsychotics is itself part of the diagnostic picture.
History from you and from someone who lives with you, examination for parkinsonian signs and orthostatic blood pressure change, cognitive assessment, and review of medication for anything anticholinergic or sedating that is making matters worse. EEG is available on site and can support the diagnosis in some cases. MRI and specialised nuclear imaging are not performed here; they are arranged elsewhere and reviewed with you. Sleep study referral is appropriate where dream enactment or apnoea is prominent.
Clinical Neurology Specialists has been physician-owned since 1998, when Leo Germin, M.D., FAANEM founded it. Five board-certified neurologists and four advanced practice providers see patients at the Las Vegas and Henderson offices, each with its own AANEM-accredited electrodiagnostic laboratory.
Clinical Neurology Specialists is an adult outpatient neurology practice for patients 18 and older. The practice performs no surgery and operates no imaging suite, infusion suite or interventional pain programme, and provides no emergency or inpatient care.
Physician-reviewed. Reviewed by the physicians of Clinical Neurology Specialists — board-certified neurologists, AANEM-accredited electrodiagnostic laboratories, physician-owned since 1998. Reviewed 1 August 2026. This article is general education for adults 18 and older and is not a substitute for a consultation.
Sources and further reading: MedlinePlus: Lewy body dementia; National Institute on Aging; National Institute of Neurological Disorders and Stroke.
Adults 18 and older, at the Las Vegas and Henderson offices. Call 702-804-1212 or request an appointment online.