(n) :
(pharmacology) An anticonvulsant drug chemically related (and partially metabolized) to phenobarbital, used in the treatment of epilepsy and essential (idiopathic) tremor.
(n) :
(pharmacology) An anticonvulsant drug chemically related (and partially metabolized) to phenobarbital, used in the treatment of epilepsy and essential (idiopathic) tremor.