Half-life: 2h (parent drug), 7-11h (parent drug, ER form), 9h (metabolite)
Metabolism: liver; CYP450: 2C19 inhibitor; 3A4/5 inducer; Info: active metabolite
Excretion: urine 95% (<1% unchanged), feces <4%
Oxcarbazepine
Carbamazepine
Lamotrigine
Phenytoin
Topiramate
Levetiracetam
Gabapentin
Ethosuximide