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Prescription requiredEisai India Pvt LtdAnti-epileptic

Zonegran 100 mg

Zonisamide

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Zonegran 100 mg is used for this medicine is used in the treatment of epilepsy, seizures, bipolar disorder and migraine prevention.

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated September 2026

Licensed pharmacyPharmacist-verified order

Key details

Salt: Zonisamide
Available variants: 100 mg 10`S
Best price: ₹256
MRP: ₹269
Prescription: Required
Manufacturer: EISAI INDIA PVT LTD

Ordering notes

Delivery details are shown when the medicine is back in stock.
Returns & refunds: orders can be cancelled before dispatch; after dispatch, returns depend on the item category. Read the full policy

Composition of Zonegran 100 mg

Zonegran 100 mg contains Zonisamide. It belongs to the Anticonvulsant class of medicines.

Uses of Zonegran 100 mg

  • This medicine is used in the treatment of epilepsy
  • seizures
  • bipolar disorder and migraine prevention.

Key benefits

  • Prevents seizures and allows a normal life
  • Also stabilises mood and prevents migraine

How Zonegran 100 mg works

Zonisamide steadies the electrical activity in the brain, making a seizure less likely to start and spread.

How to take Zonegran 100 mg

Use this medicine as your doctor has directed. Follow the dose and the duration written on your prescription.

Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.

Missed dose and overdose

If you miss a dose

Take it as soon as you remember. If your next dose is almost due, skip the one you missed — never take two doses together to catch up.

If you take too much

An overdose of this medicine can cause deep unconsciousness, slowed breathing and dangerous heart rhythm disturbance. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.

Side effects of Zonegran 100 mg

Most side effects of Zonegran are mild and settle as the body adjusts. Reported side effects include:

  • Drowsiness
  • Dizziness
  • Unsteadiness
  • Nausea
  • Double vision
  • Mood change
  • Tremor

Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.

Safety advice for Zonegran 100 mg

PregnancyNot recommended in pregnancy — it may harm the developing baby. Tell your doctor at once if you are or might be pregnant.
BreastfeedingConsult your doctor before using this while breastfeeding.
AlcoholDo not drink alcohol while taking this medicine.
DrivingDo not drive or operate machinery while taking this medicine.
KidneyConsult your doctor if you have kidney disease.
LiverConsult your doctor if you have liver disease.
Habit formingNo

Warnings and precautions

Never stop or change an anti-epileptic on your own. Stopping abruptly can cause prolonged, dangerous seizures. Sodium valproate and divalproex must not be used by anyone who is pregnant or could become pregnant unless a specialist has confirmed there is no alternative — they cause serious birth defects and developmental problems. Effective contraception is essential. Seek urgent care for any rash, especially in the first weeks — a rash with fever, blistering or peeling can be life-threatening. Report yellowing of the eyes or skin, persistent vomiting, unusual bruising or severe tiredness at once. Tell your doctor about any change in mood or any thoughts of harming yourself. Take the same brand each time unless your neurologist has agreed to a change; switching can alter seizure control.

Do not take Zonegran if

Not for anyone with a known allergy to this medicine or to any ingredient in the pack. Valproate-containing medicines are contraindicated in pregnancy for epilepsy unless no alternative exists, and in all women of childbearing potential without a pregnancy prevention programme. Several are not suitable in significant liver disease.

Interactions with other medicines

This group interacts very widely, including with contraceptives, blood thinners and other anti-epileptics. Give your doctor a full list of what you take. Hormonal contraception may become unreliable — ask your doctor which method to use.

How to store Zonegran 100 mg

Store below 30°C in the original pack, away from direct sunlight and moisture. Keep out of the reach of children.

Expert advice for Zonegran 100 mg

Take it at the same times every day; a missed dose is a common trigger for a seizure. Keep a seizure diary and take it to your appointments. Tell your doctor before planning a pregnancy — the regimen may need to be changed well in advance. Do not drive until you meet the legal seizure-free period and your doctor agrees.

Manufacturer and class

Manufacturer:
EISAI INDIA PVT LTD
Therapeutic class:
Anti-epileptic
Drug class:
Anticonvulsant

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Zonegran 100 mg FAQs

What is Zonegran 100 mg used for?
Zonegran 100 mg is commonly used for This medicine is used in the treatment of epilepsy, seizures, bipolar disorder and migraine prevention. Always follow your doctor's advice, this information is for educational purposes and not a substitute for professional medical guidance.
What is the salt in Zonegran 100 mg?
Zonegran 100 mg contains Zonisamide. If you are allergic to any of these active ingredients or excipients, do not take this medicine and speak to your doctor first.
How should I take Zonegran 100 mg?
Use this medicine as your doctor has directed. Take it exactly as prescribed; do not change the dose or stop early without talking to your doctor.
How does Zonegran 100 mg work?
Zonisamide steadies the electrical activity in the brain, making a seizure less likely to start and spread.
Is Zonegran 100 mg a prescription medicine?
Yes. Zonegran 100 mg is a prescription-only (Rx) medicine. Upload a valid prescription from a registered medical practitioner during checkout. We cannot dispense it without a valid Rx.
What are the common side effects of Zonegran 100 mg?
The side effects reported most often with Zonegran are Drowsiness, Dizziness, Unsteadiness, Nausea, Double vision. Most are mild and settle as the body adjusts; tell your doctor if any of them persist or worry you, and stop the medicine and seek help at once for a rash, swelling of the face or lips, or difficulty breathing.
Can Zonegran 100 mg be taken during pregnancy?
Not recommended in pregnancy — it may harm the developing baby. Always tell your doctor if you are pregnant, planning a pregnancy or breastfeeding before starting Zonegran.
Can I drink alcohol while taking Zonegran 100 mg?
Do not drink alcohol while taking this medicine.
What if I miss a dose of Zonegran 100 mg?
Take it as soon as you remember.
Is Zonegran 100 mg habit forming?
No. Zonegran 100 mg is not known to be habit forming when taken as prescribed.
How much does Zonegran 100 mg cost on PingMeDoc Pharmacy?
Zonegran 100 mg starts at ₹256 (MRP ₹269) on PingMeDoc Pharmacy. Available in 100 mg 10`S. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Zonegran 100 mg?
Zonegran 100 mg is manufactured by EISAI INDIA PVT LTD. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Zonegran 100 mg delivered?
Zonegran 100 mg is delivered across India via our licensed pharmacy partners. Standard delivery timelines are confirmed at checkout. Chennai customers can opt for chargeable same-city express delivery.

Zonegran 100 mg, Quick facts

Salt
Zonisamide
Best price
₹256
MRP
₹269
Prescription
Required (Rx)
Brand
EISAI INDIA PVT LTD
Manufacturer
EISAI INDIA PVT LTD
Therapeutic class
Anti-epileptic
Drug class
Anticonvulsant
Habit forming
No
Variants
100 mg 10`S
Delivery
Standard across India

References

The information on Zonegran 100 mg is compiled from the manufacturer's prescribing information and the sources below, and is reviewed by a registered medical practitioner. It does not replace advice from your own doctor.

  1. PingMeDoc clinical monograph library — compiled from Indian package inserts, the Indian Pharmacopoeia
  2. CDSCO schedules and standard pharmacology references. Reviewed for patient readability. This is general information, not a substitute for your doctor's advice.
  3. Central Drugs Standard Control Organisation (CDSCO), Ministry of Health & Family Welfare, Government of India, approved drug and schedule listings.
  4. National List of Essential Medicines (NLEM) 2022, Government of India.
  5. Manufacturer's package insert / prescribing information for Zonegran 100 mg.
  6. World Health Organization, ATC/DDD classification and Model Formulary for the active ingredient.

Next steps

Safety disclaimer

Product information is for general awareness and does not replace professional medical advice. Always follow a clinician's guidance and upload a valid prescription when required.