Appropriate dosing levels depend on many factors, including the patient's body weight, concomitant medications, and reaction to treatment. Many neurologists believe brand-name medications are preferable to generic products. Generic medications may be produced by different companies without rigorous standards regarding adequate drug level at a particular dose. Patients who use these medications may therefore be exposed to fluctuating levels of medication. For some people with epilepsy, this can result in loss of seizure control.
Any medication can cause an allergic reaction.
Dermatological problems, including rashes, are not uncommon. It is essential that patients report any suspected reactions to their physician. When medications are to be discontinued, it is almost always recommended that they be slowly tapered down in dosage strength because abrupt withdrawal can produce seizures. There is still some controversy over whether to treat a patient who has had only a single seizure. In making treatment decisions, it is helpful to look at risk factors that may predict a second seizure.