Alzheimers and Parkinsons

Understanding Alzheimers Disease

Alzheimers disease is a progressive neurodegenerative condition that affects memory, thinking, and behaviour. It is the most common form of dementia, accounting for 60-80% of all dementia cases in Australia. The disease develops when proteins build up in the brain, forming plaques and tangles that disrupt communication between nerve cells. Over time, these changes lead to the loss of brain function and ultimately affect a person’s ability to carry out daily activities.

In the early stages, people may experience mild memory loss and difficulty concentrating. As the disease progresses, symptoms become more severe, including confusion, disorientation, mood changes, and difficulty with language and communication. In the advanced stages, individuals may lose the ability to recognise family members and require full-time care.

Risk factors for Alzheimers include age, family history, genetics, and lifestyle factors such as poor diet, lack of exercise, and inadequate sleep. Currently, there is no cure, but various medications and treatments can help manage symptoms and slow progression.

Medications for Alzheimers Available in Australia

Several medications are available in Australia to help manage Alzheimers symptoms. Cholinesterase inhibitors are commonly prescribed and work by increasing acetylcholine levels in the brain, which improves communication between nerve cells.

Donepezil (Aricept) is one of the most widely used medications for mild to moderate Alzheimers disease. It is taken orally once daily and helps improve memory and cognitive function. Patients typically take 5-10mg per day.
Rivastigmine (Exelon) is another cholinesterase inhibitor available as tablets or patches. The patch form allows for steady medication delivery throughout the day. Dosage ranges from 1.5mg to 6mg daily depending on tolerance and response.
Galantamine (Reminyl) is used for mild to moderate stages and is taken twice daily. The usual dose is 8-12mg per day, divided into two doses with meals.
Memantine (Ebixa) works differently as an NMDA receptor antagonist. It is used for moderate to severe Alzheimers disease and helps protect nerve cells from excess glutamate. The standard dose is 20mg daily, reached gradually over several weeks.

These medications may cause side effects including nausea, diarrhoea, and dizziness. They work best when started early in the disease progression and should be monitored regularly by healthcare professionals.

Understanding Parkinsons Disease

Parkinsons disease is a progressive neurological disorder that primarily affects movement and motor control. It occurs when dopamine-producing cells in the brain gradually deteriorate, leading to insufficient dopamine levels. This neurotransmitter is crucial for smooth, coordinated movement.

The hallmark symptoms of Parkinsons include tremor (shaking), rigidity (stiffness), bradykinesia (slowness of movement), and postural instability (balance problems). Other common symptoms include difficulty walking, stooped posture, reduced facial expression, and speech changes.

Parkinsons develops gradually, often over several years. Early symptoms may be subtle and easily overlooked. The condition typically affects people over age 60, though younger-onset Parkinsons can occur. Factors such as genetics, environmental exposure, and age contribute to disease development.

Whilst Parkinsons is not curable, medications and therapies can significantly improve quality of life and manage symptoms effectively. With proper treatment, many people with Parkinsons maintain productive lives for many years after diagnosis.

Medications for Parkinsons Available in Australia

Treatment for Parkinsons focuses on replacing or boosting dopamine levels in the brain. Several classes of medications are available in Australia.

Levodopa (L-DOPA), often combined with carbidopa or benserazide, is the gold standard treatment for Parkinsons. Levodopa is converted to dopamine in the brain, effectively reducing motor symptoms. Brand names include Madopar and Sinemet. Typical doses range from 300mg to 1000mg daily, divided into multiple doses.
Dopamine agonists stimulate dopamine receptors directly. Medications like bromocriptine (Parlodel) and pramipexole (Mirapex) are available in Australia. These are often used in early-stage disease or combined with levodopa. Dosages vary depending on individual tolerance and response.
MAO-B inhibitors such as selegiline (Eldepryl) and rasagiline (Azilect) slow dopamine breakdown in the brain, prolonging its effects. These are frequently used in early disease stages.
COMT inhibitors like entacapone (Comtan) extend the duration of levodopa action by preventing its breakdown. This helps reduce symptom fluctuations in people taking levodopa long-term.
Anticholinergic medications such as benztropine may help reduce tremor and rigidity, particularly in younger patients. However, they are used cautiously due to potential side effects.

Regular medication adjustment and monitoring are essential as Parkinsons progresses and medication response changes over time.

Management and Lifestyle Strategies

Beyond medication, comprehensive management of both Alzheimers and Parkinsons includes lifestyle modifications and supportive therapies that improve outcomes and quality of life.

For Alzheimers, cognitive stimulation through puzzles, reading, and social engagement helps maintain mental function. Memory aids, structured routines, and a safe home environment support independence. Nutrition is important, with emphasis on Mediterranean-style diets rich in vegetables, fish, and olive oil.

Physical activity is beneficial for both conditions. Regular exercise improves mood, maintains physical function, and may slow cognitive decline in Alzheimers. For Parkinsons, exercise helps maintain balance, flexibility, and mobility. Physiotherapy, occupational therapy, and speech pathology services are valuable.

Speech and language therapy assists those experiencing communication difficulties. Occupational therapy helps adapt the home and develop strategies for daily living tasks. Adequate sleep, stress management, and social connection are important for both conditions. Support groups provide valuable emotional support and practical information for patients and carers.

When to Seek Professional Help and Support Services

If experiencing memory problems, confusion, or movement difficulties, it is important to consult a general practitioner promptly. Early diagnosis allows for earlier treatment initiation when medications are most effective.

In Australia, the Alzheimers Australia and Parkinsons Australia organisations provide comprehensive information, support services, and resources. Local aged care services, community health providers, and specialists including neurologists and geriatricians offer professional care.

Carer support services help family members manage the emotional and physical demands of caring. Respite care provides temporary relief, allowing carers to rest and attend to their own needs.

Many Australian pharmacies offer comprehensive medication management services, including dose administration aids and regular health checks. Talking with your local pharmacist about Alzheimers and Parkinsons medications helps ensure safe, effective treatment and identifies potential medication interactions or side effects early.