anticonvulsant drug an·ti·con·vulsantdrug uncommon noun 1. a drug used to treat or prevent convulsions (as in epilepsy) Synonymsanticonvulsantanticonvulsant drugantiepilepticantiepileptic drug Related words Broader terms medicine Narrower terms ethosuximidehydantoinmephenytoinmephobarbitalmetharbitalphensuximideprimidonevalproic acid WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
