Conditions

Medications for alzheimer's disease

Two established groups are used: cholinesterase inhibitors for mild to moderate disease and memantine for moderate to severe, sometimes together. Newer anti-amyloid infusion therapies target the disease process itself in selected people with early confirmed disease. Reviewing and reducing medications that impair cognition, particularly anticholinergics, matters as much as adding ones intended to help.

Quick answer

Two established groups are used: cholinesterase inhibitors for mild to moderate disease and memantine for moderate to severe, sometimes together. Newer anti-amyloid infusion therapies target the disease process itself in selected people with early confirmed disease. Reviewing and reducing medications that impair cognition, particularly anticholinergics, matters as much as adding ones intended to help.

The established medications and what to expect

Cholinesterase inhibitors increase a chemical messenger involved in memory and are used from mild disease onward. Memantine works differently and is added in moderate to severe disease. Benefit is real but modest: stabilising or slightly improving cognition and function for a period rather than reversing anything. Side effects are usually gastrointestinal for the first group, which is why doses are increased gradually, and generally mild for memantine. Neither alters the underlying disease.

The anti-amyloid therapies, with their requirements

These antibody treatments remove amyloid and modestly slow decline in early disease, which is a different kind of effect from the older drugs. The requirements are substantial: confirmed amyloid, early-stage disease, regular intravenous infusions, and periodic MRI monitoring for brain swelling and small bleeds, which are recognised risks. Eligibility is narrow. This practice operates no infusion suite and no imaging suite, so both the infusions and the monitoring are arranged elsewhere.

The medications to review and reduce

This gets less attention than it deserves. Anticholinergic medications impair cognition and appear in many common prescriptions and over-the-counter products, including some bladder medications, older antihistamines, some antidepressants and certain sleep aids. Reviewing and reducing them can produce noticeable improvement. Sedatives and sleep medications often worsen confusion and falls risk. Antipsychotics carry real risks in dementia and are particularly dangerous in Lewy body dementia, so non-drug approaches come first for agitation.

About this practice

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.

Emergency & crisis resources: Clinical Neurology Specialists is not an emergency service. For stroke symptoms, a seizure lasting more than five minutes or any medical emergency, call 911 or go to the nearest emergency room. For a mental health crisis, call or text 988 (Suicide & Crisis Lifeline).

Frequently asked

Questions about medications for alzheimer's disease

What medications are used for Alzheimer's disease?
Cholinesterase inhibitors for mild to moderate disease and memantine for moderate to severe, sometimes in combination. Newer anti-amyloid antibody therapies target the disease process itself in selected people with early, biomarker-confirmed disease. Reviewing and reducing medications that impair cognition matters as much as adding ones intended to help, and is often overlooked.
How much do the older medications help?
Modestly. They can stabilise or slightly improve cognition and function for a period rather than reversing the condition, and they do not alter the underlying disease. Some families notice the benefit most clearly if the medication is stopped and function declines.
What do the anti-amyloid treatments require?
Confirmed amyloid, early-stage disease, regular intravenous infusions, and periodic MRI monitoring for brain swelling and small bleeds, which are recognised risks. Eligibility is narrow rather than broad, and both infusion and monitoring are arranged outside this practice. Brain swelling and small bleeds are recognised risks, which is why the monitoring is mandatory rather than optional.
Which medications should be reviewed and reduced?
Anticholinergic drugs, which impair cognition and appear in some bladder medications, older antihistamines, certain antidepressants and some sleep aids. Sedatives worsen confusion and falls. Reviewing these can produce noticeable improvement and is often overlooked. Reviewing these can produce noticeable improvement, and it is one of the few interventions that both removes harm and costs nothing.
Are antipsychotics used for agitation?
Non-drug approaches come first, because antipsychotics carry real risks in dementia. They are particularly dangerous in Lewy body dementia, where sensitivity can be severe, which is one reason establishing the specific dementia type matters practically. That sensitivity is one practical reason establishing the specific dementia type matters rather than treating all dementia identically.

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.

Next step

Speak to a board-certified neurologist

Adults 18 and older, at the Las Vegas and Henderson offices. Call 702-804-1212 or request an appointment online.