Zefretol 800 Tablet

Prescription Required


Zefretol 800 Tablet is a prescription medicine used to treat epilepsy (seizures). It helps to decrease the abnormal and excessive activity of the nerve cells and calms the brain.

Zefretol 800 Tablet may be taken with or without food, preferably at the same time, each day. Take this medicine in the dose and duration as advised by your doctor. If you have missed a dose, take it as soon as you remember it. Do not skip any doses and finish the full course of treatment even if you feel better. Do not stop taking it abruptly without discussing it with your doctor, as it may increase seizure frequency.

Some of the common side effects of this medicine include blurred or double vision, headache, nausea, vomiting, fatigue, and diarrhea. It may also cause dizziness and sleepiness, do not drive or do anything that requires mental focus until you know how this medicine affects you.  Please consult your doctor if these side effects bother you or do not go away.

Your doctor may advise for regular monitoring of sodium levels, as it may reduce the sodium levels in your blood (hyponatremia). Inform your doctor if you are taking oral contraceptive pills as this medicine reduces their levels in the body.

Uses of Zefretol Tablet

Benefits of Zefretol Tablet

In Epilepsy/Seizures

Zefretol 800 Tablet is an anticonvulsant (or anti-epileptic) medicine that works by decreasing the nerve impulses which cause the seizures. By controlling the frequency of seizures, it will help you go about your daily activities with more confidence. It helps reduce symptoms such as confusion, uncontrollable jerking movements, loss of awareness, and fear or anxiety.
This medicine is not associated with any physical or psychological dependence (addiction) but it should not be stopped suddenly. It must be taken regularly as prescribed to be effective. Missing doses may trigger a seizure.

Side effects of Zefretol Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Zefretol

  • Sleepiness
  • Blurred vision
  • Nausea
  • Headache
  • Vomiting
  • Double vision
  • Fatigue
  • Balance disorder (loss of balance)
  • Diarrhea
  • Impaired coordination
  • Vertigo
  • Decreased appetite
  • Decreased sodium level in blood
  • Dizziness

How to use Zefretol Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Zefretol 800 Tablet may be taken with or without food, but it is better to take it at a fixed time.

How Zefretol Tablet works

Zefretol 800 Tablet is an anti epileptic medication. It works by blocking the voltage gated sodium channels that stabilizes the hyperexcited nerve cells in the brain. In this way, it treats seizures or fits.

Safety Advice

It is not known whether it is safe to consume alcohol with Zefretol 800 Tablet. Please consult your doctor.
Zefretol 800 Tablet may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the developing baby. Your doctor will weigh the benefits and any potential risks before prescribing it to you. Please consult your doctor.
Zefretol 800 Tablet is probably safe to use during breastfeeding. Limited human data suggests that the drug does not represent any significant risk to the baby.
Zefretol 800 Tablet should be used for short periods and sleepiness of the baby should be watched.
Zefretol 800 Tablet may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
Zefretol 800 Tablet should be used with caution in patients with severe kidney disease. Dose adjustment of Zefretol 800 Tablet may be needed. Please consult your doctor.
Use of Zefretol 800 Tablet is not recommended in patients with severe kidney disease.
Zefretol 800 Tablet should be used with caution in patients with liver disease. Dose adjustment of Zefretol 800 Tablet may be needed. Please consult your doctor.
Use of Zefretol 800 Tablet is not recommended in patients with severe liver disease.

What if you forget to take Zefretol Tablet?

If you miss a dose of Zefretol 800 Tablet, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose.

Alternate Brands

For informational purposes only. Consult a doctor before taking any medicines.
Zefretol 800 Tablet
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Eslify 800 Tablet
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Eslizen 800mg Tablet
Intas Pharmaceuticals Ltd
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Quick Tips

  • Take your medication regularly as directed by your doctor as missing doses can trigger seizures.
  • Do not change the brand of your medicine and make sure that you have sufficient amount of medicine present with you.
  • Some healthy tips to prevent seizures:
    • Practice yoga every day.
    • Get enough sleep at nighttime.
    • Limit the use of screen time such as mobile/laptop.
    • Take your medication on time.
  • It may cause dizziness and sleepiness. Do not drive or do anything that requires mental focus until you know how it affects you.
  • Inform your doctor if you develop any unusual changes in mood or behavior, new or worsening depression, or suicidal thoughts or behavior.
  • It may cause a reduction in blood sodium level (hyponatremia). Your doctor may monitor your blood sodium level regularly.
  • Inform your doctor if you notice skin reaction such as rash, skin peeling, and itching while using this medicine.
  • Do not stop taking the medication suddenly without talking to your doctor as it may increase the seizure frequency.

Fact Box

Chemical Class
Carboxamide Derivatives
Habit Forming
Therapeutic Class
Action Class
Sodium channel modulators (AED)

Interaction with Drugs

Taking Zefretol with any of the following medicines can modify the effect of either of them and cause some undesirable side effects
Brand(s): Eurolam, Alwel, Tenzo
Brand(s): Equblam, Raipox, Equiliser
Brand(s): Risure, Clobakon, Boze
Brand(s): Panik

Patient Concerns

She has problem of epilepsy from last two years
Dr. Rahul Yadav
Hello, epilepsy and seizures cannot be treated online without physically examining the child and detailed history.
I m taking 1.5gm sodium valporate,1.5 levectram, 1gm clobezam then also seizure r their at period of weekly is there alternate treatment in Ayurveda as every time at multiplying the doses at every visit As MRI eeg every tests r normal
Dr. M. K. Ansari
not aware of any ayurvedic medications for epilepsy is not my specialization. However you seems to have difficult to control (intractable) seizures plz follow doctors advice deligently for ur own welfare
Do you have any questions related to Zefretol 800 Tablet ?

User Feedback


Q. Can I stop taking if I start feeling better?

No, stopping Zefretol 800 Tablet suddenly can increase your risk of having more seizures. Your doctor will advise you on how long you should take this medicine. If your doctor decides to stop Zefretol 800 Tablet, your dose will usually be reduced gradually. It is important that you complete your treatment as advised by your doctor or your symptoms may get worse.

Q. Can Zefretol 800 Tablet cause suicidal thoughts?

Like all other anti-epileptic medicines, Zefretol 800 Tablet may also cause suicidal thoughts. However, this occurs only in a small number of people.

Q. Can Zefretol 800 Tablet be taken if I have kidney-related problems?

Inform your doctor if you are suffering from any kidney-related problems. Your doctor will monitor your kidney function (creatinine clearance) regularly and may adjust your dose of Zefretol 800 Tablet accordingly.

Q. Does Zefretol 800 Tablet affect the liver?

Inform your doctor if you are suffering from liver disease as few people have shown a negative effect on the liver with the use of Zefretol 800 Tablet. Your doctor may monitor your liver functions regularly.

Q. How can I look for early symptoms of suicidal thoughts and actions?

Pay attention to any changes, especially sudden changes in mood, behaviour, thoughts or feelings. Keep all follow-up visits with your doctor as scheduled. Call your doctor as needed, especially if you are worried about any symptoms.

Q. If I were to have an allergic reaction with Zefretol 800 Tablet, what would my symptoms look like?

Zefretol 800 Tablet may cause allergic reactions or serious problems that may impact organs and other parts of your body like the liver or blood cells. Consult your doctor straight away if you develop rashes, hives, itchiness, swelling, trouble swallowing or difficulty in breathing.

Q. Can I participate in sports when taking Zefretol 800 Tablet?

Your doctor will guide you about activities that are okay for you.

Q. How will I know that my sodium levels are low while taking Zefretol 800 Tablet?

If your blood sodium levels become low during the course of Zefretol 800 Tablet, you may experience worsening of seizures, confusion and decreased consciousness. Immediately consult your doctor if you develop any of these symptoms.

Q. Can Zefretol 800 Tablet be taken with Carbamazepine?

The dose of Zefretol 800 Tablet may need to be adjusted if you take Carbamazepine with Zefretol 800 Tablet. The reason being, Carbamazepine interferes with its working.

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  2. Drugs.com. Eslicarbazepine. [Accessed 01 Mar. 2019] (online) Available from:External Link
  3. Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 2006. Eslicarbazepine. [Updated 2019 Oct 23]. [Accessed 20 Feb. 2020] (online) Available from:External Link
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Manufacturer/Marketer Address

90, Delhi - Jaipur Road, Sector 32, Gurugram, Haryana 122001
Country of Origin: India

Expires on or after: December, 2022

A licensed vendor partner from your nearest location will deliver Zefretol 800 Tablet. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.
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