This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Which of the following drugs is used for treatment of myoclonus? \nSelect and explain. \nA. Valproate, B. Levetiracetam, C. Primidone, D. All of the above', 'role': 'user'}, {'content': "Answer: D \nExplanation: Treatment primarily consists of treating the underlying condition or removing an offending agent. Pharmacologic therapy involves one or a combination of GABAergic agents such as valproic acid (1200-3000 mg/d), piracetam (8-20 g/d), clonazepam (2-15 mg/d), or primidone (500-1000 mg/d). Recent studies suggest that levetiracetam may be paicularly effective. Ref: Harrison's principle of internal medicine 17th edition, chapter 367.", 'role': 'assistant'}]