<prompt> Drugs which increase GABA level in brains-DiazepamPhenobarbitoneSodium valproateCarbamazepine  <response>: Ans. is c i.e., Sodium valproate GABA level is increased by Valproate and vigabatrine -- by inhibiting GABA transaminase Gabapentin -- by increasing synaptic vesicle release of GABA. 