Finally, AED therapy is not always forever. Tapering AEDs can be considered when a person has been seizure‐free for at least two years. However, AED therapy can only be stopped once it has been established that a person has no major ongoing predisposition to seizures and has no seizure activity on a routine EEG. The person should also not have experienced problems with prior attempts to stop medications. Even if seizures have not occurred for years, medications usually are continued if an underlying problem in the brain is present, like a stroke, tumor, abnormal blood vessel or birth defect.
If a person meets the conditions for tapering, there is a two in three chance of being able to withdraw AEDs successfully. The flip side is that there is a one in three chance of having a seizure after withdrawing medicine, a risk that some find unacceptably high. Also, many doctors advise not driving while withdrawing AEDs, which prevents some patients from even trying. In all cases, except emergencies, medications are tapered slowly and under care of a doctor.