title: Valproic Acid-induced Hyperammonemic Encephalopathy Promoted by Levetiracetam.
abstract: Encephalopathy resulting from the administration of levetiracetam (LEV) is a rare occurrence. We experienced a patient receiving LEV treated with valproic acid (VPA) for partial seizures with secondary generalization, following which she developed hyperammonemic encephalopathy and showed complete recovery after the drug was withdrawan. LEV is able to promote hyperammonemic encephalopathy when added to VPA.
authors.affiliation: Department of Neurology, Bundang Jesaeng General Hospital, Seongnam, Korea.
authors.forename: Sook Young
authors.initials: SY
authors.lastname: Roh
authors.affiliation: Department of Neurology, Bundang Jesaeng General Hospital, Seongnam, Korea.
authors.forename: Hyun-Soon
authors.initials: HS
authors.lastname: Jang
authors.affiliation: Department of Neurology, Bundang Jesaeng General Hospital, Seongnam, Korea.
authors.forename: Eun Hye
authors.initials: EH
authors.lastname: Jeong
authors.affiliation: Department of Neurology, Bundang Jesaeng General Hospital, Seongnam, Korea.
authors.forename: Byung-Su
authors.initials: BS
authors.lastname: Kim
authors.affiliation: Department of Neurology, Bundang Jesaeng General Hospital, Seongnam, Korea.
authors.forename: Moon Kyung
authors.initials: MK
authors.lastname: Sunwoo
keywords: Hyperammonemic encephalopathy; Levetiracetam; Valproic acid