It's a very common disorder. It occurs, on a conservative estimate, at least 1 percent of the population, maybe as high as three out of every 100 people could be defined as having epilepsy.
ANNOUNCER: For many years there have been medications to control seizures, but there are some drawbacks to these drugs.
BLANCA VAZQUEZ, MD: Those medicines have side effects for being more tired. Some of them can produce osteoporosis or weakening of the bones. Some of them produce imbalance of hormones and may have long-term side effects of not learning or having more difficulty with cognition.
ANNOUNCER: Now, there is a new group of medications that also controls the symptoms of epilepsy. They may be easier for a patient to tolerate than the older drugs.
WILLIAM ROSENFELD, MD: The newer drugs have less potential side effects than the older drugs. The newer drugs will often have less problems in terms of cognitive side effects.
The biggest asset is that if they're equally effective, you clearly would rather be on the drug that gives you at least the same or better efficacy and less problems.
ANNOUNCER: Eliminating seizures is, of course, the most important goal, but there are other considerations in deciding on therapy
WILLIAM ROSENFELD, MD: The second part is that patients would like to be on monotherapy if at all possible, meaning by that one-drug therapy. And the reason is, if you can take one drug, there is less potential for side effects to the patient.