Parkinsonism Parkinsonism with favorable response to dopaminergic medication Favorable response to levodopa Parkinsonism is a clinical syndrome that is a feature of a number of different diseases, including Parkinson disease itself, other neurodegenerative diseases such as progressive supranuclear palsy, and as a side-effect of some neuroleptic medications. Some but not all individuals with Parkinsonism show responsiveness to dopaminergic medication defined as a substantial reduction of amelioration of the component signs of Parkinsonism (including mainly tremor, bradykinesia, rigidity, and postural instability) upon administration of dopaminergic medication. Favourable response to levodopa Parkinsonism with favourable response to dopaminergic medication UMLS:C1846868 HP:0002548