<prompt> Myoclonus in children is best treated by:ClonazepamSodium ValproatePhenobarbitoneEthosuccimide  <response>: Myoclonic and atonic seizures-control is often incomplete, but valproate is the drug of choice. Myoclonic Seizures. Myoclonic seizures are characterized by brief, jerking spasms of a muscle or muscle group. They often occur with atonic seizures, which cause sudden muscle limpness. The word myoclonic combines the Greek prefix for muscle -- myo -- with clonus, which means twitching. REF: KD TRIPATHI 8TH ED. 