“…However, there are some AED therapy, particularly long-term treatment, that known to be associated with vitamin D deficiency (eg, phenobarbital, phenytoin, and carbamazepine), leading to worsen hypocalcemia. Levetiracetam does not seem to have adverse effect on hypocalcemia and vitamin D deficiency, thus should be considered to give on epileptic patient with risk of hypovitamin D and hypocalcemia [ 17 , 18 ].…”