Educational guide · based on the sources listed below
People often mix up two things. One is a five-stage scale that describes how Parkinson's affects the body. The other is the set of treatments specialists choose from. They are linked, but treatment does not follow a fixed step-by-step ladder.
This is general education only. A specialist chooses each treatment for the individual. Nothing here says what any one person should receive.
The Hoehn & Yahr scale is a tool doctors use to describe how much Parkinson's affects movement and independence. It moves at a different pace for everyone. Some people stay in the same stage for many years.
1
Symptoms affect one side of the body. They are usually mild and have little or no effect on daily activities.
2
Symptoms affect both sides of the body, or the neck and trunk. Balance is not yet affected.
3
Balance problems may lead to falls. The person can still usually manage daily activities without physical help.
4
Symptoms greatly limit daily activities. The person needs help but can still stand or walk without assistance.
5
Without help, the person needs a wheelchair or stays in bed. Extensive help with daily care is usually needed.
A stage number describes how a person is functioning. It does not decide the treatment. Specialists also look at symptoms, how well medicines work, age, other health conditions and the person's own goals.
Three main types of Parkinson's treatment
These are not steps everyone goes through in order. Most people use oral medicines for many years. Infusion and DBS are two different options for some people with advanced symptoms. A Parkinson's specialist decides if either one is suitable, and many people never need them. My father has only taken oral medicines, along with physiotherapy.
Tablets or capsules taken by mouth. Most treatment starts here. Levodopa is the main medicine; it turns into dopamine in the brain. Other add-on medicines, such as dopamine agonists, MAO-B inhibitors and COMT inhibitors, can help it work longer. Exactly which ones, and how often, depends on the person.
Parkinson's Foundation: prescription medications
Vyalev (called Produodopa in some countries) contains foslevodopa and foscarbidopa. A small wearable pump delivers it through a thin tube under the skin, day and night. It is for selected people with advanced Parkinson's whose ON and OFF periods are hard to control with tablets. Availability differs by country.
Cleveland Clinic Abu Dhabi: continuous infusion therapy
A surgery where thin wires (electrodes) are placed in a specific part of the brain. They connect to a small battery device, like a pacemaker, placed under the skin of the chest. It sends steady electrical pulses that can reduce some movement symptoms. Only carefully selected patients are suitable, after detailed specialist tests.
Parkinson's Foundation: deep brain stimulationIllustrations are simplified drawings, not photos of real devices or brands.
This is an example, not advice. It shows how treatment discussions often change over time. The phases are not a required order, and they do not match the numbered stages above. A specialist decides what fits and when.
Phase 1
When movement symptoms affect daily life, a specialist may suggest medicine. Levodopa becomes dopamine in the brain, helping replace a chemical that is low in Parkinson's. Other medicines may also be suitable.
Phase 2
ON periods are times when medicine is working; OFF periods are times when it wears off and symptoms return. These changes are called motor fluctuations. Dyskinesia means involuntary extra movements. A specialist may adjust doses or add another medicine to help.
Phase 3
If symptoms remain hard to control with oral medicines, a specialist may assess whether a pump or surgery could help. Each option has benefits and risks. Suitability depends on the person, and these treatments are not a required sequence.
Phase 4
Support from several health professionals can help at any stage. As needs change, the team can help with daily activities and comfort, and support family caregivers.
So far, his care has been Parkinson's medicines taken by mouth, plus physiotherapy. He has not had Vyalev/Produodopa, Duopa, an apomorphine pump or DBS. They are listed here to explain the options. A specialist would need to assess whether any of them suits a person. His real history lives on the treatment journey and medicines pages.
Personal experience, not medical advice. I share our family's experience here. Talk to your doctor before starting, stopping or changing any medicine. New or worsening speech trouble, facial drooping or sudden weakness can be an emergency. Seek urgent medical help immediately. Full disclaimer