Carbamazepine: uses, side effects & brands

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

Carbamazepine treats epilepsy and nerve pain such as trigeminal neuralgia. It belongs to the Anti-epileptic (seizure medicine) group. These control seizures in epilepsy and are sometimes used for nerve pain or mood.

Ask MedDroid about carbamazepine →

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 tonic-clonic seizures
Trigeminal neuralgia (facial nerve pain)
Bipolar disorder (some cases)

Common brand names

India: Tegrital, Zeptol, Mazetol
Worldwide: Tegretol

Common side effects

Dizziness or unsteadiness
Drowsiness
Nausea
Double or blurred vision

Before taking it — precautions

It interacts with many medicines and makes hormonal contraceptives less effective
Tell your doctor about pregnancy, liver disease, heart rhythm problems or blood disorders
People of some Asian ancestry may need a gene test (HLA-B*1502) before starting because of severe rash risk

When to see a doctor urgently

Severe rash, blistering or peeling skin, mouth sores (urgent)
Fever, sore throat, bruising or bleeding (low blood counts)
Confusion or seizures with low sodium

Not a prescription — no dose shown. The right dose of carbamazepine 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 might I need a gene test before carbamazepine?

Some people, especially of South and East Asian ancestry, carry a gene linked to very severe skin reactions. Testing helps avoid this risk.

Does carbamazepine affect birth-control pills?

Yes, it can make hormonal contraception fail. Discuss a reliable method with your doctor.

Can carbamazepine help nerve pain?

Yes, it is a standard treatment for trigeminal neuralgia, a sharp facial nerve pain.

Ask MedDroid about carbamazepine →

Explore more

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.