IRCT20180406039205N1 IRCT 2019-12-28 Mazandaran University of Medical Sciences Effect of pyridoxine on behavioral side effects of levetiracetam Investigation of pyridoxine effect on behavioral adverse events of levetiracetam in adult patients with idiopathic generalized tonic-clonic epilepsy; A randomized double-blind placebo-controlled clinical trial 2020-01-01 anticipated 50 Complete https://irct.ir/trial/44210 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: The patients will be randomized by simple randomization method with 1:1 rate using online software (www.graphpad.com/quickcalcs/randMenu), Blinding description: Both drugs and placebo with similar shape and color will be put in similar coded pockets (21 pills in each pocket) and will be given to patients. None of the patient, investigator and outcome assessor will know about type of intervention. 3 Epilepsy. Intervention 1: Intervention Pyridoxine, 40mg tablet (Darou pakhsh, Iran) once daily. Intervention 2: Control group: Placebo tablet with the same shape and color as pyridoxine, once daily. No - There is not a plan to make this available Justification or reason for not sharing IPD is The reason for not sharing IPD is that in consent form we stipulate that patient's questionnaires will only be reviewed by investigators of this study and we will only publish the overall results in form of paper, etc.