Lamotrigine: uses, side effects & brands

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

Lamotrigine treats epilepsy and stabilises mood in bipolar disorder; the dose is increased slowly to avoid rash. It belongs to the Anti-epileptic (seizure medicine) group. These control seizures in epilepsy and are sometimes used for nerve pain or mood.

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Drug type — dosing is set by your doctor

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

What it is used for

Focal and generalised seizures
Preventing depression episodes in bipolar disorder
Add-on treatment with other seizure medicines

Common brand names

India: Lamitor, Lametec, Lamodep
Worldwide: Lamictal

Common side effects

Headache
Dizziness or double vision
Nausea
Trouble sleeping

Before taking it — precautions

The dose must be increased slowly to lower the risk of serious rash; do not restart at your old dose after a break without advice
Tell your doctor if you take valproate or hormonal contraceptives (they change lamotrigine levels)
Tell your doctor about pregnancy or liver or kidney disease

When to see a doctor urgently

Any new rash, especially with fever, blisters or mouth sores (urgent)
Fever, swollen glands and feeling very unwell
Thoughts of self-harm or sudden mood changes

Not a prescription — no dose shown. The right dose of lamotrigine 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 is lamotrigine started so slowly?

Slow increases greatly reduce the risk of a rare but serious skin reaction. Follow your doctor's schedule exactly.

What if I miss several days?

Do not restart at the full dose. Contact your doctor, as you may need to build up again slowly.

Does lamotrigine help bipolar disorder?

Yes, it helps prevent depressive episodes in bipolar disorder, though it is less useful for treating mania.

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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.