The antiepilectic drug which does not produce enzyme induction is
The four major enzyme-inducing AEDs (carbamazepine, phenytoin, phenobarbital and primidone) stimulate the metabolism and reduce the serum concentration of most other concurrently administered AEDs, most notably valproic acid , tiagabine , ethosuximide , lamotrigine , topiramate , REF : KD TRIPATHI 8TH ED.
Phenobarbitone
Sodium valproate
Phenytoin sodium
Carbamazepine
Central Nervous system