Treatment decisions
Becoming seizure-free does not automatically mean antiseizure medication should be stopped. Withdrawal is a planned clinical decision that weighs the chance of seizure recurrence against the benefits and burdens of continuing treatment.
Central point: Two years seizure-free is a point to review the question of withdrawal — not a guarantee that stopping medication is safe, and not a rule that treatment must end.
What NICE recommends
NICE recommends discussing the benefits and risks of continuing or discontinuing antiseizure medication as part of ongoing treatment review. After a person has been seizure-free for 2 years, an individualised assessment should be made of the risk of seizure recurrence if medication is stopped. If there is uncertainty or concern, that assessment should involve an epilepsy specialist.
Why recurrence risk is individual
No single seizure-free period predicts the future for everyone. Risk depends on the epilepsy syndrome, age at onset, underlying cause, seizure type, EEG findings, imaging findings, number and pattern of previous seizures, duration of seizure freedom, treatment history and other clinical factors. Some syndromes have a substantially higher tendency to relapse than others.
That is why a website calculator or one percentage cannot replace specialist assessment. Published prediction models can help inform discussion, but they do not remove uncertainty for an individual person.
Why someone may want to stop
Reasons may include adverse effects, cognitive or mood effects, pregnancy planning, interactions with other medicines, treatment burden, cost or a wish to know whether medication is still needed. These are legitimate reasons to discuss withdrawal, but they have to be balanced against the possible consequences of relapse.
Why someone may choose to continue
A recurrent seizure can have consequences beyond the seizure itself: injury, driving restrictions, employment effects, loss of independence, psychological impact and, for some people, renewed risk from tonic-clonic seizures. A person may decide that remaining on a well-tolerated medicine is preferable even when withdrawal could reasonably be considered.
How withdrawal is normally done
NICE recommends gradual withdrawal. For most antiseizure medicines this would typically take at least 3 months. Benzodiazepines and barbiturates usually need a longer taper because abrupt or overly rapid withdrawal can itself cause withdrawal symptoms and seizures. If several antiseizure medicines are being taken, they should generally be withdrawn one at a time.
Stopping suddenly without clinical advice is different from planned medication withdrawal and can be dangerous.
What if a seizure returns?
NICE recommends having a plan in advance. If seizures recur during or after withdrawal, the last dose reduction should be reversed and guidance sought from the epilepsy specialist, in line with the agreed plan. Recurrence may also affect driving and other safety decisions.
After epilepsy surgery
Medication withdrawal after epilepsy surgery requires a different level of specialist input. NICE recommends that discontinuation after surgery is managed under the guidance of the epilepsy surgery centre. Seizure freedom after surgery does not automatically mean medicines should be stopped immediately.
Seizure freedom, remission and resolved epilepsy are not the same thing
A person can be seizure-free while still taking medication. Remission is used in several clinical and research contexts, while the ILAE term resolved epilepsy has a specific operational meaning. These distinctions are explained in our dedicated page on remission and seizure freedom.
Related pages
Remission, Seizure Freedom and ‘Resolved’ Epilepsy · Treatment Options · Medication Side Effects and Interactions · Why Epilepsy Medication Should Not Be Stopped Suddenly
Sources
NICE NG217 — Principles of treatment, safety, monitoring and withdrawal
NICE NG217 Evidence Review M — Discontinuation of pharmacological treatment
This page provides general educational information and is not individual medical advice. Do not stop or reduce antiseizure medication without an agreed clinical plan.
Evidence checked: September 2026.