Peak-dose dyskinesia is a movement disorder that often affects individuals with Parkinson's disease. It refers to the involuntary and abnormal movements that occur during the peak of a medication cycle. Some synonyms for peak-dose dyskinesia include medication-induced dyskinesia, levodopa-induced dyskinesia and drug-induced movements. Other terms used to describe this condition include peak-dose chorea, peak-dose dystonia, and peak-dose akathisia. While medication is often the primary cause of peak-dose dyskinesia, other factors such as stress, fatigue, and excitement can also trigger these involuntary movements. Treatments may include reducing the dosage of medication, adding adjunctive therapies, or switching to a different medication altogether.