<prompt> Raju, a 10 yr old boy is having difficulty in learning at school. He has sho lapses of awareness with eyelid fluttering that occur every 5-10 minutes. EEG studies reveal brief 3 Hz spike and wave discharges appearing synchronously in all the leads. Which of the following drugs would be effective but has the disadvantage that it causes sedation and tolerance?DiazepamEthosuximideClonazepamValproic acid  <response>: Diagnosis of the patient is petit mal epilepsy absence seizures. Drugs effective against absence seizures are: Ethosuximide Valproate Clonazepam Lamotrigine Clonazepam is a benzodiazepine that can cause sedation and tolerance. Thedrug of choicefor childhood absence seizures in India issodium valproate. 