Pediatrics New Born Infants 9e6a0643 Which vitamin deficiency is responsible for neonatal seizure: A Pyridoxine B Vitamin C C Thiamine D Cobalanum High-Yield Explanation a. Pyridoxine(Ref: Nelson's 20/e p 2849-2853)Pyridoxine deficiency is one of the causes of refractory seizures in the neonatal period & infancy.