What treatments are available for Alzheimer’s dementia? 

Treating Alzheimer’s dementia involves a multi-faceted approach that combines medication, cognitive therapies, and lifestyle adjustments. In a clinical context, treatments are currently divided into those that manage symptoms and those that aim to modify the course of the disease. While there is no cure for Alzheimer’s, the goal of treatment is to maintain independence, improve quality of life, and support brain function for as long as possible. The choice of treatment depends significantly on the stage of the disease and the specific needs of the individual. 

In the UK, the healthcare system provides a clear pathway for accessing these treatments through memory clinics and specialist services. Traditional medications focus on balancing chemical messengers in the brain to help nerve cells communicate more effectively. More recently, new classes of drugs have been developed that target the underlying biology of the disease, although their availability within the public health system is subject to specific clinical and cost-effectiveness criteria. This guide outlines the various pharmacological and non-pharmacological options available to patients today. 

What we will discuss in this article 

• Standard medications for mild, moderate, and severe Alzheimer’s 

• How cholinesterase inhibitors and NMDA antagonists work 

• The clinical status of new disease modifying treatments 

• Non pharmacological therapies like Cognitive Stimulation Therapy 

• Managing behavioural and psychological symptoms of dementia 

• The role of lifestyle changes in long term management 

• Emergency guidance for identifying signs of health deterioration 

Standard pharmacological treatments 

Medications for Alzheimer’s are primarily designed to temporarily reduce symptoms and improve daily functioning. They do not stop the underlying death of brain cells, but can make a meaningful difference in how a person manages their day-to-day life. 

Cholinesterase inhibitors 

These are the most common medications prescribed for mild to moderate Alzheimer’s. They work by preventing the breakdown of acetylcholine, a chemical messenger in the brain that is essential for memory and learning. 

• Donepezil: Often the first medication offered and is suitable for all stages of the disease. 

• Rivastigmine: Available as a capsule or a skin patch, which can be helpful if the person has difficulty swallowing. 

• Galantamine: Typically used for mild to moderate symptoms. 

Common side effects of these medications can include nausea, loss of appetite, and dizziness, though these often settle after a few weeks of treatment. 

NMDA receptor antagonists 

As Alzheimer’s progresses to the moderate or severe stages, a different type of medication called memantine may be prescribed. It works by regulating the activity of glutamate, another brain chemical that, when present in excessive amounts, can damage nerve cells. Memantine can be used on its own or in combination with a cholinesterase inhibitor to provide additional cognitive support. It is often effective in helping with symptoms like agitation or delusions. 

New disease modifying treatments 

The landscape of Alzheimer’s treatment has shifted with the introduction of drugs that target amyloid plaques: the protein clumps that are a hallmark of the disease. 

While the Medicines and Healthcare products Regulatory Agency has licensed treatments such as lecanemab and donanemab for very early stage Alzheimer’s, they are not currently recommended for routine use on the NHS. The National Institute for Health and Care Excellence has determined that while these drugs show some clinical benefit in slowing cognitive decline, the benefits are modest compared to the high cost of the drug and the intensive hospital resources required for administration and monitoring. At present, these treatments are primarily accessed through private clinics or clinical trials. 

Non-pharmacological therapies 

Non-drug treatments are a vital part of a comprehensive care plan and are often used alongside medication to support wellbeing and mental function. 

• Cognitive Stimulation Therapy: This involves taking part in themed group activities designed to keep the mind active. It is one of the most effective non-drug treatments for people with mild to moderate dementia. 

• Cognitive Rehabilitation: A professional works with the person and their family to achieve specific goals, such as learning how to use a new phone or staying safe in the kitchen. 

• Reminiscence Therapy: This uses objects, photos, and music from the past to stimulate memories and improve mood and communication. 

Managing behavioural and psychological symptoms 

As dementia progresses, some people may develop behavioural symptoms such as aggression, anxiety, or sleep disturbances. Clinicians always prefer to use non-drug approaches first, such as adjusting the environment or identifying triggers. However, if these symptoms are severe or causing distress, short-term medications may be used. Risperidone is the only antipsychotic licensed for the short-term treatment of persistent aggression in Alzheimer’s, and its use is strictly monitored by specialists to minimise risks. 

To summarise 

Treatments for Alzheimer’s dementia focus on a combination of symptom management medications and therapeutic interventions. While standard drugs like donepezil and memantine are widely available on the NHS to help with memory and daily function, the newest disease-modifying therapies are currently limited to private settings. Non-pharmacological approaches like Cognitive Stimulation Therapy and cognitive rehabilitation remain cornerstones of care, helping individuals maintain their quality of life. A person-centred approach, regularly reviewed by a clinical team, ensures that treatment evolves as the condition changes. 

Emergency guidance 

While Alzheimer’s is a slow, progressive condition, sudden changes in behaviour or physical health are medical emergencies. Call 999 or seek immediate clinical help if a person experiences a sudden onset of severe confusion, known as delirium, or shows signs of a stroke, such as facial drooping or sudden weakness. Rapidly worsening confusion is often not caused by the dementia itself but by treatable underlying issues like urinary tract infections, dehydration, or a reaction to medication. Prompt medical assessment is necessary to treat the cause and prevent permanent injury to the brain. 

Authority Snapshot 

Dr. Stefan Petrov is a physician with an MBBS and postgraduate certifications including Basic Life Support BLS, Advanced Cardiac Life Support ACLS, and the UK Medical Licensing Assessment PLAB 1 and 2. He has hands on experience in general medicine, surgery, anaesthesia, ophthalmology, and emergency care. Dr. Petrov has worked in both hospital wards and intensive care units, performing diagnostic and therapeutic procedures, and has contributed to medical education by creating patient focused health content and teaching clinical skills to junior doctors.