(medicine) something that treats or prevents or alleviates the symptoms of disease

an anticonvulsant drug (trade names Emeside and Zarontin) used to treat petit mal epilepsy

an anticonvulsant (trade name Neurontin) used to control some types of seizures in the treatment of epilepsy; also used to manage neuralgia caused by shingles

any of a group of anticonvulsant drugs used in treating epilepsy

a toxic anticonvulsant drug (trade name Mesantoin) used in the treatment of epilepsy when less toxic anticonvulsants have been ineffective

a long-acting crystalline barbiturate (trade name Mebaral) used as a sedative and as an anticonvulsant in the treatment of epilepsy