<prompt> Which of the following drugs is used for treatment of myoclonus?ValproateLevetiracetamPrimidoneAll of the above  <response>: 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 mgd, piracetam 8-20 gd, clonazepam 2-15 mgd, or primidone 500-1000 mgd. Recent studies suggest that levetiracetam may be paicularly effective. Ref: Harrisons principle of internal medicine 17th edition, chapter 367. 