Dementia of the Alzheimer’s type is a progressive brain condition that gradually affects memory, thinking, and daily functioning. While there is currently no cure, a range of treatment approaches exist to help manage symptoms, slow progression, and support quality of life for people living with this condition.

Understanding Treatment Goals for Alzheimer’s Dementia

When someone receives a diagnosis of Alzheimer’s disease, the journey ahead involves managing a condition that changes over time. The main goals of treatment focus on maintaining mental function for as long as possible, helping people stay independent in their daily activities, and supporting overall well-being. Treatment approaches vary depending on how far the disease has progressed and the individual needs of each person.^[10]

Medical professionals use approved medications recommended by clinical guidelines, but researchers are also actively testing new therapies in clinical trials. These studies explore innovative ways to target the biological processes underlying Alzheimer’s disease. Each person’s treatment plan is unique and should be developed in partnership with healthcare providers who specialize in dementia care.^[11]

It’s important to understand that current treatments cannot reverse the brain damage caused by Alzheimer’s disease. However, they can help control symptoms such as memory loss and confusion, and in some cases, slow the decline in thinking skills. Some newer medications aim to address the underlying disease process itself by targeting abnormal protein deposits in the brain.^[14]

Standard Medications for Managing Alzheimer’s Symptoms

Several classes of medications have been used for years to help manage the cognitive symptoms of Alzheimer’s disease. These medicines work by affecting certain chemicals in the brain that are important for memory and thinking.

Cholinesterase Inhibitors

The most commonly prescribed medications for mild to moderate Alzheimer’s disease are called cholinesterase inhibitors. These drugs work by preventing the breakdown of acetylcholine, a brain chemical that helps nerve cells communicate with each other. As Alzheimer’s progresses, the brain produces less of this important chemical, and these medications help maintain higher levels.^[11]

Three medications in this category are widely used: donepezil (also known as Aricept), rivastigmine (Exelon), and galantamine (Razadyne). Donepezil, galantamine, and rivastigmine can be prescribed for people with early to mid-stage Alzheimer’s disease. Rivastigmine is also available as a skin patch, which some people find easier to use than pills.^[13]

These medications may help reduce or control some cognitive and behavioral symptoms temporarily. While they work in similar ways, some people respond better to one drug than another. The most common side effects include nausea, vomiting, and loss of appetite. These side effects are usually temporary and tend to improve after about two weeks of taking the medicine.^[13]

Recent guidelines recommend that these medicines can be continued even in the later, severe stages of the disease. However, as Alzheimer’s progresses and the brain produces even less acetylcholine, these medications eventually lose their effectiveness over time.^[13]

Memantine

Another medication called memantine (Namenda) works differently from cholinesterase inhibitors. It blocks the effects of too much of a brain chemical called glutamate. When glutamate is present in excessive amounts, it can damage brain cells.^[11]

Memantine is prescribed for people with moderate or severe Alzheimer’s disease. It’s a good option for those who cannot take or don’t tolerate cholinesterase inhibitors well. It can also be used alongside a cholinesterase inhibitor in people with severe Alzheimer’s disease. The main benefit of memantine is helping to slow the rate at which people lose their ability to perform daily activities.^[17]

Common side effects of memantine may include headaches, dizziness, and constipation, but these are usually temporary. Doctors who specialize in using these medications should monitor patients taking them to ensure they follow recommended guidelines.^[14]

Medications for Behavioral Changes

As Alzheimer’s disease progresses, especially in the middle to later stages, many people develop changes in mood and behavior. These can include increased anxiety, agitation, aggression, depression, or even hallucinations and delusions. These symptoms are called behavioral and psychological symptoms of dementia, or BPSD.^[13]

Before prescribing medication for these symptoms, doctors first try to identify and address any underlying causes. Sometimes behavioral changes result from pain, constipation, or infections. Other times, they may be caused by frustration with the environment or difficulty being understood.^[27]

When medications are needed, antidepressants may be given to treat depression, anxiety, or irritability. For persistent aggression or extreme distress where there’s a risk of harm, doctors may prescribe antipsychotic medications such as risperidone. However, antipsychotics should only be used at the lowest effective dose and for the shortest time possible because they have serious side effects.^[13]

Disease-Modifying Treatments: Targeting Alzheimer’s Biology

In recent years, researchers have developed a new category of treatments that aim to slow down Alzheimer’s disease by targeting the underlying biological changes in the brain. These are called disease-modifying medications because they address the potential cause of the disease, not just the symptoms.^[18]

Anti-Amyloid Immunotherapies

One of the hallmark features of Alzheimer’s disease is the buildup of abnormal protein deposits called amyloid plaques in the brain. Scientists believe these plaques contribute to brain cell damage and death. The newest approved treatments work by helping the body’s immune system remove these amyloid-beta proteins from the brain.^[14]

Two medications in this category have received approval from the U.S. Food and Drug Administration (FDA): lecanemab (Leqembi) and donanemab (Kisunla). Both are approved specifically for treating early Alzheimer’s disease, meaning people with mild cognitive impairment or mild dementia caused by Alzheimer’s.^[11]

Lecanemab received traditional FDA approval in 2024 for the treatment of early Alzheimer’s disease. In clinical studies conducted over 18 months, lecanemab slowed the rate of cognitive decline in some study participants and reduced the levels of amyloid in the brain. The drug is given as an infusion into a vein every two weeks.^[11]

Donanemab also received FDA approval in 2024. This medication targets a specific form of amyloid that forms plaques and is particularly toxic to brain cells. In a phase 3 clinical trial, donanemab slowed the progression of cognitive and functional decline by 35% in participants with early signs of Alzheimer’s disease. About 76% of participants showed amyloid clearance from their brains. Donanemab is given as a monthly infusion.^[18]

Before prescribing either lecanemab or donanemab, doctors need to confirm that amyloid deposits are present in the brain. This is done through specialized brain scans called PET scans or by analyzing cerebrospinal fluid obtained through a procedure called a lumbar puncture (spinal tap).^[11]

These medications can have side effects. The most concerning are related to brain swelling or small bleeding spots in the brain, conditions called ARIA (amyloid-related imaging abnormalities). Because of this risk, patients receiving these treatments need regular brain imaging to monitor for these complications. Other side effects can include infusion-related reactions such as fever, flu-like symptoms, nausea, and vomiting.^[14]

It’s important to note that insurance coverage for these medications varies. Medicare Part B covers part of the cost for patients who meet certain medical criteria. People considering these treatments should discuss with their healthcare team whether they are good candidates and understand the potential risks and benefits.^[11]

Promising Therapies Being Tested in Clinical Trials

Beyond the medications already approved, scientists around the world are testing many innovative approaches to treating Alzheimer’s disease. Clinical trials are research studies that evaluate whether new treatments are safe and effective before they become widely available.

Understanding Clinical Trial Phases

Clinical trials for Alzheimer’s treatments typically progress through three main phases. Phase I trials focus primarily on safety, testing the new treatment in a small group of people to understand what side effects might occur and what doses are safe. Phase II trials involve more participants and aim to determine whether the treatment has beneficial effects on cognitive function or other measures of the disease. Phase III trials are large studies that compare the new treatment to current standard treatments or placebo to confirm its effectiveness and monitor for side effects in a broader population.^[14]

Other Approaches to Targeting Amyloid

While lecanemab and donanemab have been approved, other anti-amyloid treatments continue to be studied. Some experimental medications use slightly different mechanisms to remove amyloid from the brain or prevent it from forming in the first place. Researchers are also investigating whether combining different types of amyloid-targeting drugs might be more effective than using one alone.

Tau-Targeting Therapies

In addition to amyloid plaques, Alzheimer’s disease is characterized by the buildup of another abnormal protein called tau. Inside brain cells, tau forms twisted tangles that interfere with cell function. While no tau-targeting treatments have been approved yet, several are in various stages of clinical testing. These experimental therapies aim to prevent tau from forming tangles, help the body clear tau from the brain, or block the spread of tau from one brain cell to another.

Inflammation and Immune System Approaches

Scientists have discovered that inflammation in the brain plays a role in Alzheimer’s disease. The brain’s immune cells, called microglia, can become overactive and actually contribute to brain cell damage. Some clinical trials are testing medications that modify the immune system or reduce brain inflammation. The goal is to shift the immune response in the brain from a harmful state to a protective one that might help clear abnormal proteins and support brain cell health.

Lifestyle and Combination Approaches

Some clinical trials don’t focus on medications at all but instead test whether lifestyle changes can slow cognitive decline. These studies investigate the effects of physical exercise, cognitive training, dietary modifications, or combinations of multiple lifestyle interventions. Researchers are particularly interested in whether starting these approaches early, even before significant symptoms appear, might help delay or prevent Alzheimer’s disease.

Other trials combine approved medications with experimental drugs or test whether existing drugs used for other conditions might also help with Alzheimer’s. For example, some studies are looking at whether medications that improve blood vessel health or control diabetes might benefit people with Alzheimer’s disease.

Who Can Participate in Clinical Trials

Clinical trials for Alzheimer’s disease typically have specific requirements for who can participate. Early-stage trials often recruit people with mild cognitive impairment or early-stage dementia. Some prevention trials enroll people who don’t yet have symptoms but are at higher risk, such as those with a family history of Alzheimer’s or certain genetic risk factors.

Trials are conducted in many locations including the United States, Europe, and increasingly in other parts of the world. Each study has its own criteria based on factors such as age, stage of disease, overall health, and whether the person is taking other medications. Many trials require that participants have a study partner—usually a family member or friend—who can provide information about the person’s memory and daily activities.^[11]

People interested in participating in clinical trials can discuss options with their doctor or search for studies through online databases. Participating in research helps advance scientific understanding and may provide access to new treatments before they’re widely available. However, it’s important to understand that experimental treatments may not work or may have unexpected side effects, and some participants receive a placebo (inactive treatment) rather than the active drug being tested.

Non-Drug Approaches to Managing Alzheimer’s

While medications play an important role in managing Alzheimer’s disease, non-drug approaches are equally valuable for supporting quality of life and helping manage symptoms.

Cognitive and Social Stimulation

Cognitive stimulation therapy involves taking part in group activities and exercises designed to improve memory and problem-solving skills. These structured activities provide mental challenges appropriate for the person’s ability level and help maintain thinking skills for longer. The social aspect of group activities also helps reduce isolation and can improve mood.^[13]

Reminiscence work involves talking about events and experiences from the past, often using prompts such as photographs, favorite possessions, or music. This can be combined with life story work, which creates a compilation of memories from childhood to the present day, either as a physical book or digital version. These approaches can improve mood and provide a sense of identity and continuity.^[13]

Physical Activity and Healthy Lifestyle

Regular physical activity is beneficial for people with Alzheimer’s disease. Exercise can help maintain physical function, improve mood, support better sleep, and may even have protective effects on brain health. Activities can include walking, dancing, swimming, gardening, or any movement that the person enjoys and can safely perform. Even household chores contribute to staying active.^[21]

A nutritious diet is also important. As dementia progresses, dietary needs may change to maintain a healthy weight and overall nutrition. Eating regular meals at consistent times in a familiar place can help establish routines that are comforting and easier to follow.

Other Therapeutic Approaches

Several other therapies may help manage Alzheimer’s symptoms. Music therapy uses familiar songs and melodies to evoke memories and emotions. Animal-assisted therapy involves interactions with trained animals, which can reduce anxiety and improve mood. Massage and aromatherapy may help with relaxation and reducing agitation. Some people also benefit from art activities or other creative pursuits that provide enjoyment and a sense of accomplishment.^[13]

Newer approaches include repetitive transcranial magnetic stimulation (rTMS), which is a noninvasive technique that uses magnetic fields to stimulate specific regions of the brain. While still being studied, some research suggests it may help with cognitive function.^[18]

Most common treatment methods

• Cholinesterase inhibitors
  • Donepezil, rivastigmine, and galantamine are prescribed for mild to moderate Alzheimer’s disease
  • These drugs prevent the breakdown of acetylcholine, a brain chemical important for memory
  • Common side effects include nausea, vomiting, and loss of appetite, which typically improve after two weeks
  • Latest guidelines recommend continuing these medications even in later stages of disease
• Memantine
  • Used for moderate to severe Alzheimer’s disease
  • Works by blocking excess glutamate in the brain
  • Helps slow the rate of functional decline
  • Can be used alone or combined with a cholinesterase inhibitor
• Anti-amyloid immunotherapy
  • Lecanemab and donanemab are FDA-approved for early Alzheimer’s disease
  • These drugs help remove amyloid-beta protein plaques from the brain
  • Slowed cognitive decline by up to 35% in clinical trials over 18 months
  • Given as intravenous infusions every two weeks or monthly
  • Require confirmation of amyloid presence through PET scans or cerebrospinal fluid analysis before treatment
  • Side effects can include brain swelling or bleeding, requiring regular monitoring
• Medications for behavioral symptoms
  • Antidepressants for treating depression, anxiety, or irritability
  • Low-dose antipsychotics (such as risperidone) for persistent aggression or extreme distress
  • Used at lowest dose for shortest time possible due to serious side effects
  • Often prescribed after addressing underlying causes like pain or infection
• Cognitive stimulation therapy
  • Group activities and exercises designed to improve memory and problem-solving
  • Helps maintain thinking skills and provides social interaction
  • Can improve mood and wellbeing
• Reminiscence and life story work
  • Uses photos, possessions, and music to talk about past experiences
  • Can be combined into physical or digital life story books
  • Improves mood and sense of identity
• Physical activity programs
  • Aim for at least 30 minutes of activity most days
  • Can include walking, dancing, swimming, or household activities
  • Helps maintain function, improve mood, and support better sleep
• Other therapeutic approaches
  • Music therapy using familiar songs and melodies
  • Animal-assisted therapy with trained animals
  • Massage and aromatherapy for relaxation
  • Repetitive transcranial magnetic stimulation (rTMS) using magnetic fields to stimulate brain regions

Supporting Daily Life and Future Planning

Beyond medical treatments, managing Alzheimer’s disease involves practical strategies to support independence and quality of life for as long as possible. Writing down appointments and to-do lists in a notebook or calendar helps keep track of important information. Setting up automated bill payments prevents missed payments and reduces financial stress. Many people benefit from organizing an area in their home where they keep important items they need each day.^[23]

Creating a daily routine with consistent times for meals, bathing, and activities provides structure that can reduce confusion and anxiety. As the disease progresses, adapting the home environment by removing clutter, improving lighting, and adding safety features like grab bars can help prevent falls and support continued independence.^[22]

Sleep problems are common in Alzheimer’s disease. Following a regular sleep schedule, developing a relaxing bedtime routine with lowered lights and no electronic screens, and avoiding caffeine late in the day can help improve sleep quality. Addressing sleep issues is important because poor sleep can make dementia symptoms worse.^[21]

Planning for future care needs is an essential part of living with Alzheimer’s disease. This includes making decisions about legal and financial matters, identifying trusted people who can help with decision-making, and discussing preferences for care as the disease progresses. Having these conversations early, when the person with Alzheimer’s can still participate meaningfully, helps ensure their wishes are known and respected.