Handouts · Medications
Oxcarbazepine (Trileptal)
An anticonvulsant used for bipolar disorder (mood), seizures, and some nerve pain. A relative of carbamazepine, but usually easier on the blood and liver.
What It Is
Oxcarbazepine steadies electrical activity in the brain. It is used to help mood in bipolar disorder, to control seizures, and for some nerve pains.
It is chemically similar to carbamazepine but usually needs less blood and liver monitoring — though it is more likely to lower sodium.
How to Take It
Take twice daily, with or without food. Taking it with food can ease early nausea or dizziness.
Increase the dose slowly as directed, and do not stop suddenly — taper with your prescriber.
Important Warnings
Oxcarbazepine does not carry a classic “black box” warning, but a few cautions matter:
• Serious skin reactions (Stevens-Johnson syndrome) — rare; people of Asian ancestry may be tested for the gene HLA-B*1502 first.
• Low sodium is more common than with many drugs.
• Like other seizure medicines, a small increase in suicidal thoughts is possible.
Common (Usually Mild) Side Effects
- Dizziness, drowsiness.
- Double or blurred vision.
- Nausea, headache.
- Unsteadiness.
Serious — Call Us or Seek Care
- Low sodium: headache, confusion, weakness, nausea, or new/worse seizures.
- Any rash, especially with blisters, peeling, or mouth/eye sores.
- Swelling of the face, lips, or throat (allergic reaction).
- New or worsening depression or suicidal thoughts.
Alcohol & Interactions
Avoid alcohol — it adds to drowsiness and dizziness.
It can make birth control pills less effective — use a backup method and tell us before adding or stopping medicines.
Monitoring
• Sodium level — checked especially in the first few months, or if symptoms appear
• HLA-B*1502 gene test before starting if you have Asian ancestry
Routine blood counts and liver tests are not usually needed, unlike carbamazepine.