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1. Preventing or arresting seizures. 2. An agent having such action. SYN: anticonvulsive, antiepileptic.
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anticonvulsant also anticonvulsive adj used or tending to control or prevent convulsions (as in epilepsy)
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n.
a drug that prevents or reduces the severity and frequency of seizures in various types of epilepsy; the term antiepileptic drug is now preferred since not all seizures involve convulsions. The choice of drug is dictated by the type of seizure and the patient's response, and the dosage must be adjusted carefully as individuals vary in their response to these drugs and side-effects may be troublesome. Commonly used antiepileptic drugs include carbamazepine, lamotrigine, phenytoin, and sodium valproate; topiramate, gabapentin, vigabatrin, oxcarbazepine, and levetiracetam are newer drugs. Phenobarbital is no longer commonly prescribed.
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an·ti·con·vul·sant (an″te-) (an″ti-kən-vulґsənt) 1. preventing or relieving convulsions. 2. an agent that prevents or relieves convulsions.Medical dictionary. 2011.