Neurostimulation including vagus nerve stimulation (VNS) and Deep brain stimulator (DBS) are the non pharmacological adjunctive approaches for the treatment of pharmacoresistance patients as shown in Fig. 2B and 2C respectively. This is a reserved therapy for patients who cannot undergo in surgery and for whom, surgery has failed.46,48Neurostimulation is carried out by short bursts of electrical energy directed into the brain via vagus nerve. Neurocybernetic prosthesis (NCP), a vagal nerve stimulator is implanted in the patient’s chest on the upper left side as shown in Fig. 2). Preclinical study reported that the stimulation of vagal nerve fibers (about 4Hz frequencies) can prevent experimental induced clonic seizures by intra-peritoneal injection of PTZ and tonic-clonic seizures caused by maximal electroshock (MES). This preventive effect of vagus nerve stimulation may be act through transient desynchronization of cortical rhythms or by raising the seizure threshold by releasing glycine and GABA in the brain structures.47