For medications to work effectively, a relatively constant level of medication must be maintained in the body. This is accomplished by taking medication regularly as directed, without missing doses. The consequences of missed doses may be a single seizure, more devastating multiple seizures, or status epilepticus. Divided doses may be preferable with some medications, ensuring a more constant level of medication in the bloodstream. 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.