Topamax is a brand name for topiramate. Discovered and first produced by Johnson & Johnson divisions Ortho-McNeill and Noramco, Inc., this prescription medication is used to treat epilepsy in children and adults. It can also be used for Lennox-Gastaut syndrome, migraine headaches, and bipolar disorder, and to prevent weight gain for those on anti-depressants. Researchers are also testing the drug ...