If your child has been diagnosed with epilepsy, starting medication can bring both relief and concern. You may be glad that treatment is available while wondering which medicine will be suitable, whether it will control the seizures and what side effects to look out for.
Anti-seizure medicines are the main treatment for epilepsy and can work well for many children. The right medicine depends on factors such as your child’s seizure type, epilepsy syndrome, age, other health conditions and the potential benefits and risks of treatment, so finding the right balance may sometimes take time.
What Are Anti-Seizure Medicines?
Anti-seizure medicines help reduce the likelihood of epileptic seizures. You may also hear the older term antiepileptic drugs (AEDs), but current NICE guidance uses “antiseizure medication” (ASM), with the aim of controlling seizures while helping your child continue everyday activities.
Several medicines are available, and the right choice depends on your child’s seizure type or epilepsy syndrome. Your child may need one medicine, while some children need a second treatment, and certain childhood epilepsies may improve with age so medication can eventually be reduced under specialist supervision.
How Does the Specialist Choose the Right Medicine?
Choosing the right anti-seizure medicine depends on your child’s seizure type, epilepsy syndrome and individual circumstances. Your specialist will also consider factors such as age, sex, other medicines, existing health conditions, possible side effects and which form of medicine is easiest for your child to take.
If there is more than one suitable option, you can discuss the benefits and possible drawbacks with the specialist. Some medicines require additional safety considerations. Valproate is subject to specific UK reproductive-risk measures for both male and female patients, while topiramate has additional pregnancy-prevention requirements for girls and women who could become pregnant.
Why Does the Type of Seizure Matter So Much?
Epilepsy can cause different types of seizures, and the right medicine depends on the type your child has. You may find that a medicine which works well for one type of epilepsy is less effective for another, while some medicines can even make certain seizures worse.
This is why your child’s specialist needs an accurate understanding of their seizures before changing treatment. You can help by describing what happens during an episode, keeping a seizure diary and, where it is safe to do so, recording a video to show the clinician.
Does Every Child Who Has a Seizure Need Medication?
Not every child who has a seizure will need long-term epilepsy medication. If your child has had a seizure, the specialist will first look carefully at what happened and may use information such as witness accounts, videos, EEG findings or brain imaging to support the assessment and investigate possible causes where appropriate.
If epilepsy is confirmed, NICE recommends starting treatment with an antiseizure medicine. After a first unprovoked seizure without a confirmed epilepsy diagnosis, long-term medication is not routinely started, although it may be considered in some circumstances after specialist assessment.
What Happens When Your Child Starts Medication?
When your child starts an anti-seizure medicine, treatment will often begin with a lower dose that is gradually increased over days or weeks. This gives your child’s body time to adjust while your specialist finds a suitable dose to help control the seizures.
You may notice that your child takes two medicines for a short period if one treatment is being replaced by another. Give each dose at the recommended time and, if you are unsure about the dose, measuring device or liquid strength, check with your pharmacist or epilepsy team before giving it.
Clinical Tip
When your child starts a new anti-seizure medicine or the dose changes, keep a simple record of seizures, missed doses and any noticeable changes in sleep, mood, appetite or behaviour. This can help the epilepsy team judge how well the treatment is working and whether side effects need review.
How Is Epilepsy Medication Monitored?
Monitoring epilepsy medication involves more than checking whether your child’s seizures have stopped. At follow-up appointments, you can discuss changes in concentration, behaviour, sleep, appetite, mood and everyday functioning, as well as whether the dose still suits your child as they grow.
Children and young people with epilepsy should have regular monitoring reviews, at least every 12 months and sometimes more often depending on their needs. Blood tests or anti-seizure medicine levels are not routinely required for every child or every medicine, but they may be considered in particular circumstances, such as uncontrolled seizures, troublesome side effects or concerns about how the medicine is being taken. Keep an up-to-date medication list and share any changes with your child’s epilepsy team.
What Should You Keep Track of Between Reviews?
| What to monitor | What can be useful to record |
| Seizures | Date, time, duration, type of seizure and recovery afterwards |
| Possible side effects | Sleepiness, dizziness, nausea, appetite changes or other new symptoms |
| Mood and behaviour | Irritability, low mood, unusual behaviour or changes after a dose increase |
| Sleep and concentration | Changes in sleep, attention, alertness or school performance |
| Medication | Missed doses, vomiting after a dose, changes in formulation or problems taking it |
| Growth and development | Changes that may affect whether the dose or treatment still suits your child |
You do not need to record every detail; focus on meaningful changes that may help the epilepsy team review treatment.
How Will You Know Whether the Medicine Is Working?
The clearest sign that your child’s treatment is working is usually a reduction in seizures. You may notice fewer or shorter seizures, or your child may eventually become completely seizure-free, although improvement may take time as the medicine is gradually increased to the planned dose.
Use the record you keep between reviews to look for changes in how often seizures happen, how long they last and what they look like. If seizures become more frequent or you notice a new type of episode, tell your child’s epilepsy team, as the medicine may need adjusting or the diagnosis may need further review.
What Are the Common Side Effects of Anti-Seizure Medicines?
Side effects can vary between anti-seizure medicines and from one child to another. Your child may experience sleepiness, dizziness, nausea, headaches, changes in co-ordination or appetite, although some effects improve as their body adjusts to the medicine.
Some medicines can also affect mood or behaviour. If you notice persistent or troublesome changes, particularly after starting treatment or increasing the dose, you should let your child’s clinician know so they can decide whether the medicine needs reviewing.
Why Are Valproate and Some Other Medicines Treated Differently?
Sodium valproate can be an important treatment for some types of epilepsy, but it is subject to additional UK safety measures because of reproductive risks. Current MHRA rules state that valproate should only be started in a person under 55 years when two specialists agree that other suitable treatments are not effective or tolerated, or there are compelling reasons why the reproductive risks do not apply.
Additional measures apply as children approach reproductive age. Male patients under 55 who are starting valproate also require counselling about reproductive risks and completion of the relevant risk-acknowledgement process. Topiramate also has a Pregnancy Prevention Programme for girls and women who could become pregnant. If your child takes valproate or topiramate, do not stop the medicine yourself; their specialist can explain which safety measures apply as they get older.
UK Guidance Note
Girls and women of childbearing potential who continue valproate must follow the Pregnancy Prevention Programme and have annual specialist review. Valproate should not be stopped without specialist advice.
Can Epilepsy Medicines Interact with Other Medicines?
If your child takes anti-seizure medicine, you should let their doctor or pharmacist know before starting any other prescription, over-the-counter or herbal treatment. Some medicines can affect how well the epilepsy treatment works or increase the risk of side effects, but this does not mean your child cannot take medicine for another health condition.
Keep an up-to-date list of your child’s medicines and take it to appointments, particularly if they see different specialists. If a pharmacy provides a medicine that looks different from the usual one, or you are unsure about an over-the-counter or herbal product, ask a pharmacist before giving it rather than guessing.
Which Side Effects Need Urgent Medical Advice?
Most side effects are not emergencies, but some symptoms need immediate medical attention. Call 999 or go to A&E if your child develops a painful or widespread rash with blistering or peeling, sores or blisters involving the mouth, severe swelling of the face, mouth, tongue or throat, or difficulty breathing or talking. Rare serious skin reactions can occur with medicines including lamotrigine and carbamazepine. If your child develops a new rash after starting one of these medicines, seek prompt medical advice even if the rash does not yet appear severe.
For other potentially serious symptoms, such as unexplained bruising or bleeding, persistent fever, jaundice or marked changes in mood or behaviour, contact NHS 111 or your child’s clinical team promptly. Do not stop an anti-seizure medicine suddenly unless a qualified clinician advises you to, because abrupt withdrawal can trigger seizures.
Myth vs Fact
| Myth | Fact |
| Every child who has one seizure needs epilepsy medication. | No. A first seizure does not always mean epilepsy, and anti-seizure medication is not routinely started after every first unprovoked seizure. |
| If my child has no seizures, I can stop the medicine. | No. Treatment should not be stopped suddenly. Withdrawal should be discussed with the specialist and planned gradually when appropriate. |
| Blood tests are needed regularly for every epilepsy medicine. | No. Monitoring depends on the medicine and your child’s clinical circumstances; routine medicine-level testing is not needed for everyone. |
| If one medicine does not work, there are no other options. | No. Another medicine or combination may be considered. If epilepsy is drug-resistant, NICE recommends referral to a tertiary epilepsy service. |
| Rescue medication is the same as daily epilepsy medication. | No. Rescue medicines are used according to an emergency plan for particular prolonged or repeated seizures. |
| Valproate safety rules only concern girls. | No. Current UK precautions also apply to male patients, although the specific reproductive measures differ. |
What Is Rescue Medication and Will My Child Need It?
If your child has epilepsy, you may be prescribed rescue medication if they are at risk of prolonged seizures or seizure clusters. Unlike daily anti-seizure medicine, rescue treatment is used during certain emergencies, and NICE recommends medicines such as buccal midazolam or rectal diazepam in appropriate situations.
If there is no individual emergency plan available, a convulsive seizure lasting five minutes or longer should be treated as a medical emergency requiring immediate treatment and emergency help.
If your child needs rescue medication, you should receive a clear emergency plan explaining when to give it, how to use it and when to call an ambulance. Make sure anyone who may care for your child, including relatives or school staff, is appropriately trained, and check the medicine’s expiry date regularly so the treatment and plan are available when needed.
How Should Medication Be Managed at Nursery or School?
If your child has epilepsy, you can work with their nursery or school to help them take part in education as fully and safely as possible. Make sure staff know what your child’s usual seizures look like and what they should do, including any regular medication or rescue treatment outlined in their written epilepsy or healthcare plan.
If your child’s medication changes, let the school know, particularly if it affects alertness, concentration or behaviour. You can also discuss arrangements for activities such as swimming, physical education and school trips, while feedback from teachers may help your epilepsy specialist identify symptoms or changes that are difficult to notice at home.
What Should You Do If Your Child Misses a Dose or Is Sick?
If your child misses a dose, you should check the instructions provided with their medicine rather than automatically giving an extra dose. The correct advice depends on the specific anti-seizure medicine, how often it is taken and how close the missed dose is to the next one, so asking a pharmacist or epilepsy professional can help you decide what to do.
If your child is sick after taking their medicine, you may also need specific advice because it can be unclear how much medicine has been absorbed. If vomiting continues, your child cannot keep their medicine down or several doses are missed, contact their clinical team, NHS 111 or a pharmacist rather than repeatedly giving extra doses without guidance.
What Happens If Medication Does Not Fully Control the Seizures?
If your child continues to have seizures despite treatment, it does not necessarily mean that nothing else can be done. You may first discuss whether the prescribed dose is being taken consistently and whether the medicine is suitable for your child’s seizure type.
If the first medicine does not provide adequate seizure control, another anti-seizure medicine may be tried or an additional medicine may be added. If adequate trials of two tolerated, appropriately chosen and used antiseizure medication schedules do not achieve sustained seizure freedom, the epilepsy is considered drug-resistant. NICE recommends referral to a tertiary epilepsy service when epilepsy is drug-resistant. Specialist options can include a ketogenic diet, vagus nerve stimulation or epilepsy surgery for selected children.
Can Medication Be Stopped When Seizures Are Well Controlled?
Becoming seizure-free is an important milestone, but it does not always mean you should stop your child’s medication straight away. Continuing treatment for a period may help reduce the risk of seizures returning while the underlying epilepsy remains active.
After your child has been seizure-free for two years, NICE recommends an individualised assessment of the risk of seizures returning before treatment is stopped. If withdrawal is appropriate, most anti-seizure medicines are reduced gradually, typically over at least three months. Some medicines, particularly benzodiazepines and barbiturates, usually need to be withdrawn over a longer period to reduce the risk of withdrawal-related problems. The exact plan depends on your child’s epilepsy syndrome, seizure history, EEG findings, underlying cause and individual risk of recurrence.
Key Takeaways
- The choice of anti-seizure medicine depends on your child’s seizure type, epilepsy syndrome and individual circumstances.
- Medicines are often started at a low dose and increased gradually.
- Keep track of seizure control, side effects and meaningful changes in mood, sleep or everyday functioning.
- Children and young people with epilepsy should have regular treatment reviews, at least annually.
- Do not double a missed dose or stop treatment suddenly; follow medicine-specific advice from a healthcare professional.
- Valproate and topiramate have important UK reproductive-safety requirements.
- If epilepsy is drug-resistant, NICE recommends referral to a tertiary epilepsy service.
- After two years seizure-free, medication withdrawal may be considered only after an individualised specialist assessment.
Frequently Asked Questions
1. Does every child with epilepsy need medication?
Once epilepsy has been confirmed, NICE recommends starting treatment with an antiseizure medication. The medicine chosen depends on your child’s seizure type, epilepsy syndrome and individual circumstances. This is different from a first unprovoked seizure without a confirmed epilepsy diagnosis, when long-term medication is not routinely started unless there are specific reasons to consider treatment.
2. How is the right epilepsy medicine chosen for a child?
The choice depends mainly on the seizure type and epilepsy syndrome, as well as your child’s age, sex, other health conditions and potential side effects. The specialist may also consider the most suitable formulation, such as a liquid, tablet or capsule.
3. What are the common side effects of epilepsy medication in children?
Possible side effects include sleepiness, dizziness, nausea, headaches, appetite changes and problems with co-ordination. Some medicines can also cause changes in mood or behaviour, so persistent or troublesome symptoms should be discussed with the epilepsy team.
4. How long does it take for epilepsy medication to work?
Some medicines are introduced gradually, with the dose increased over days or weeks. Your child’s specialist may need time to assess seizure control at the appropriate treatment dose, although an earlier review may be needed if seizures worsen or significant side effects occur.
5. What should happen if a dose of epilepsy medicine is missed?
The correct action depends on the specific medicine, dosing schedule and how close the missed dose is to the next one. Do not automatically give two doses together; follow the medicine-specific instructions or ask a pharmacist or epilepsy specialist for advice.
6. Can epilepsy medication be stopped if seizures have stopped?
Medication should not be stopped suddenly, even if your child has been seizure-free. A specialist may eventually discuss gradual withdrawal after a sustained period without seizures, taking factors such as the epilepsy syndrome, seizure type and risk of recurrence into account.
7. What should happen if epilepsy medicine causes a rash?
A new rash after starting an epilepsy medicine such as lamotrigine or carbamazepine should be reported promptly. Call 999 or go to A&E if your child develops a painful, blistering or peeling rash, severe mouth sores, facial or throat swelling, or difficulty breathing.
8. Will children need rescue medication as well as daily epilepsy medicine?
Not every child needs rescue medication. It may be prescribed for children who are at risk of prolonged seizures or seizure clusters, with an individual emergency plan explaining when and how it should be given.
9. What happens if epilepsy medication does not control the seizures?
The specialist may review the diagnosis, seizure type, medicine dose and how consistently the treatment is being taken. Another medicine may be tried or an additional medicine added, and if epilepsy is drug-resistant, NICE recommends referral to a tertiary epilepsy service for consideration of other treatments.
10. How is epilepsy medication monitored in children?
Regular reviews assess seizure control, side effects, development, behaviour, sleep, appetite and everyday functioning. Medication doses may also need adjustment as a child grows, while blood tests or other monitoring may be recommended for certain medicines or clinical circumstances.
Final Thoughts on Epilepsy Medication for Children
Epilepsy medication can help control seizures, but finding the right treatment may take time and regular review. The choice depends on your child’s seizure type, epilepsy syndrome, health and response to treatment.
Medication should always be taken as prescribed and should not be stopped or changed suddenly without specialist advice. If seizures continue, troublesome side effects develop or your child’s circumstances change, speak with their epilepsy team so the treatment plan can be reviewed safely.
If you are looking for a trusted children’s epilepsy treatment in London, you can contact us at London Paediatric Clinic to arrange a consultation and discuss your child’s needs.
References
- National Institute for Health and Care Excellence (NICE) (2026) Epilepsies in children, young people and adults. NICE guideline NG217. Published 27 April 2022; updated 5 August 2026. Available at: https://www.nice.org.uk/guidance/ng217
- NHS (2025) Epilepsy. Page last reviewed 6 March 2025. Available at: https://www.nhs.uk/conditions/epilepsy/
- Medicines and Healthcare products Regulatory Agency (MHRA) (2025) Valproate – reproductive risks. Published 10 June 2025; updated 23 September 2025. Available at: https://www.gov.uk/guidance/valproate-reproductive-risks
- Medicines and Healthcare products Regulatory Agency (MHRA) (2024) Topiramate (Topamax): introduction of new safety measures, including a Pregnancy Prevention Programme. Published 20 June 2024. Available at: https://www.gov.uk/drug-safety-update/topiramate-topamax-introduction-of-new-safety-measures-including-a-pregnancy-prevention-programme
- Department for Education (2017) Supporting pupils with medical conditions at school. Statutory guidance. Published 1 September 2014; updated 16 August 2017. Available at: https://www.gov.uk/government/publications/supporting-pupils-at-school-with-medical-conditions–3
- National Institute for Health and Care Excellence, British National Formulary (no date) Lamotrigine. Available at: https://bnf.nice.org.uk/drugs/lamotrigine/
- NHS (2026) Carbamazepine (Tegretol). Page last reviewed 6 August 2026. Available at: https://www.nhs.uk/medicines/carbamazepine/