<prompt> Which antiepileptic drug does not act inhibition of sodium channels?VigabatrinCarbamazepineLamotriginePheriytoin  <response>: It is an inhibitor of GABAtransaminase, the enzyme which degrades GABA. Anticonvulsant action may be due to increase in synaptic GABA concentration Ref: KD TRIPATHI 8thh ed. 