Topamax

Brief description:
Topamax (Topiramate) is an anticonvulsant used with other medicines to control certain types of seizures.

Therapeutic actions:
The precise mechanisms by which topiramate exerts its anticonvulsant and migraine prophylaxis effects are unknown; however, preclinical studies have revealed four properties that may contribute to topiramate's efficacy for epilepsy and migraine prophylaxis. Electrophysiological and biochemical evidence suggests that topiramate, at pharmacologically relevant concentrations, blocks voltage-dependent sodium channels, augments the activity of the neurotransmitter gamma-aminobutyrate at some subtypes of the GABA-Areceptor, antagonizes the AMPA/kainate subtype of the glutamate receptor, and inhibits the carbonic anhydrase enzyme, particularly isozymes II and IV.

What is it used for?:
Topamax is used to control seizures. This medication is also used to prevent migraine headaches and reduce how often you may get them. Topiramate will not work to treat a migraine headache once it occurs. If you get a migraine headache, treat it as directed by your doctor (e.g., take pain medications, decrease sound and light). Prescription needed.