Topamax® (topiramate) is an antiepileptic agent indicated for the treatment of partial onset or primary generalized tonic-clonic seizures and for the prophylaxis of migraine headaches.
Mood Stabilizers and Anticonvulsant Medications, Page 2

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In mental health contexts, anticonvulsants (which were originally developed to treat seizures) and mood stabilizers are both sometimes used to treat bipolar disorder. Some anticonvulsants are also used to treat pain.
