Topiramate: uses, side effects & brands

Written & medically reviewed by Dr. Sanjay Anbu, MBBS · Last reviewed 5 November 2026

Topiramate treats epilepsy and prevents migraines. It belongs to the Anti-epileptic (extra) group. More seizure medicines, some also used for nerve pain, migraine or mood.

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Drug type — dosing is set by your doctor

Measure	Range
Drug class	Anti-epileptic (extra)
Type	Prescription
Dose	Individual — ask your doctor or pharmacist

What it is used for

Epilepsy (various seizure types)
Preventing migraine
Lennox-Gastaut syndrome seizures

Common brand names

India: Topamac, Toprnew
Worldwide: Topamax

Common side effects

Tingling in hands and feet
Slowed thinking or word-finding trouble
Weight loss and reduced appetite
Altered taste of fizzy drinks

Before taking it — precautions

Not for use in pregnancy without specialist advice (birth defect risk); use reliable contraception
Drink plenty of fluids; it can cause kidney stones
Reduces the effect of hormonal contraceptives

When to see a doctor urgently

Sudden eye pain or blurred vision (urgent)
Severe back or side pain or blood in urine (kidney stone)
Suicidal thoughts or mood change (urgent)

Not a prescription — no dose shown. The right dose of topiramate depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.

Frequently asked questions

Why does topiramate cause tingling?

It affects how the body handles acid, which commonly causes pins and needles. It is usually mild and often eases with time.

Can it cause weight loss?

Yes, reduced appetite and weight loss are common side effects.

Why the eye warning?

Rarely it causes a sudden rise in eye pressure, usually in the first month. Sudden eye pain or blurred vision needs emergency care.

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Sources & further reading

Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.