[The Dutch College of General Practitioners' practice guideline 'Parkinson's disease' in summary].

Parkinson's disease is characterised by bradykinesia in combination with one or more of the following symptoms: rigidity, resting tremor and disorders of posture and balance. Refer a patient with suspected Parkinson's disease (or parkinsonism) for diagnosis and treatment preferably to a neurologist with expertise in movement disorders. The treatment of Parkinson's disease is symptomatic; to date, there is no treatment that slows disease progression.