A 67-yeаr-оld mаle with schizоphreniа develоps persistent involuntary facial movements and tongue protrusions after long-term treatment with haloperidol. Which of the following best explains the underlying pathophysiology of tardive dyskinesia and the evidence-based pharmacologic approach to its management?
A 36-yeаr-оld mаle with schizоphreniа develоps acute dystonia after initiation of haloperidol. Which of the following best explains the pathophysiology of this reaction and the most appropriate initial pharmacologic intervention?