Dyskinesia is a movement disorder that can develop in people with Parkinson’s disease, particularly after long-term treatment with levodopa. It involves involuntary movements that may affect the arms, legs, head, trunk, or other parts of the body. As Parkinson’s disease progresses, managing dyskinesia alongside symptoms such as tremors, stiffness, and slowed movement can become more complex.
Parkinson’s disease is a progressive neurological condition associated with the loss of dopamine-producing cells in the brain. Dopamine helps regulate movement, coordination, and other functions. Levodopa is commonly prescribed to improve movement-related symptoms by increasing dopamine availability in the brain. However, long-term treatment and changes in the brain’s response to medication can contribute to dyskinesia in some individuals. These involuntary movements differ from the tremors and stiffness caused by Parkinson’s disease itself. Recognizing these differences is important when evaluating symptoms and planning appropriate care.
Dyskinesia refers to involuntary movements that a person cannot fully control. In Parkinson’s disease, it is frequently associated with levodopa treatment, particularly when medication levels rise and fall throughout the day. The severity and timing of symptoms vary between individuals.
Dyskinesia may appear as twisting, writhing, jerking, or repetitive movements. Some people experience mild movements that do not significantly interfere with daily activities, while others may find that symptoms affect walking, eating, speaking, or maintaining balance.
Several factors may influence dyskinesia, including the duration of Parkinson’s disease, medication dosage, individual sensitivity to treatment, and fluctuations in medication response.
Important aspects of dyskinesia include:
Peak dose dyskinesia: Involuntary movements occur when levodopa has a strong effect, often around the time medication reaches its highest effect.
Wearing off symptoms: Parkinson’s symptoms may return before the next medication dose, sometimes alongside changes in involuntary movements.
Biphasic dyskinesia: Movements can occur while medication effects are increasing or decreasing.
Impact on daily life: Severe movements may contribute to fatigue, discomfort, difficulties with daily tasks, and an increased risk of falls.
Keeping a record of medication times, movement changes, and symptom severity can help healthcare professionals identify patterns. Medication should not be changed or stopped without guidance from the prescribing clinician.
Advanced Parkinson’s disease care involves regularly reviewing symptoms, medication effectiveness, mobility, cognitive changes, sleep, and other health concerns. Treatment decisions are individualized because reducing dyskinesia must be balanced against maintaining adequate control of stiffness, tremors, and slowed movement.
Healthcare professionals may consider several approaches depending on the person's symptoms, medical history, and treatment response.
Medication adjustments: A neurologist may modify levodopa doses, timing, or formulation to reduce fluctuations and involuntary movements.
Amantadine: This medication can help reduce levodopa-induced dyskinesia in some patients. Its suitability depends on individual health factors and potential side effects.
Advanced treatment options: Selected patients may be evaluated for deep brain stimulation or continuous medication delivery methods when symptoms remain difficult to manage despite optimized medication.
Physical therapy: Exercises focused on strength, balance, posture, and walking can support mobility and help reduce some functional difficulties.
Occupational therapy: Practical strategies and adaptive equipment may help people manage dressing, eating, bathing, and other daily activities.
Caregiver support: Education, home safety measures, and assistance with appointments and medication schedules can improve care coordination.
Regular follow-up is important because Parkinson’s disease symptoms and treatment needs can change over time. Clinicians may also assess swallowing difficulties, speech changes, mood, memory, and nutritional needs as part of comprehensive care.
People experiencing sudden or severe movement changes, repeated falls, or difficulty swallowing should seek prompt medical assessment. A coordinated approach involving neurologists, rehabilitation professionals, caregivers, and other healthcare providers can help address the changing needs associated with advanced Parkinson’s disease and dyskinesia.