Dysarthric disorders associated with the neuroleptic malignant syndrome.

There have been two reported cases of neuroleptic malignant syndrome (NMS) in combination with dysarthric disorders. In both cases the NMS was phenomenologically related to the malignant dopamine withdrawal syndrome and to the akinetic crisis of parkinsonism. The reported dysarthric disorders are to be interpreted as a differential-diagnostic sign of the exclusion of a permicious catatonia.