what all is topamax used for
Topamax is used: 1  To prevent migraine headaches in adults. 2  As a first-line single-drug treatment to prevent partial seizures and tonic-clonic seizures in people aged 10 and older who have epilepsy.  In combination with other drugs to prevent partial seizures or tonic-clonic seizures in people aged 2 and older who have epilepsy.