Does Lamotrigine Interact with Rufinamide?
CDI records a moderate classification for Lamotrigine and Rufinamide. The stored summary is: Rufinamide decreases lamotrigine levels by 7-13%. Monitor lamotrigine concentrations and adjust dose if needed. The mechanism involves concentration-dependent effect of rufinamide on lamotrigine pharmacokinetics. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This record was extracted from drug labeling through openFDA. NIH/NLM RxNorm is used for drug identities. The summary and severity classification are CDI's processed information, not a verbatim source quotation. Product, route, and patient circumstances matter.
- Severity
- Moderate
- Lamotrigine Class
- Anti-epileptic Agent
- Management
- Monitor for effects
- Data Source
- U.S. FDA via OpenFDA
Recorded Mechanism
Concentration-dependent effect of rufinamide on lamotrigine pharmacokinetics
What To Tell Your Doctor or Pharmacist
If you are taking Lamotrigine and your doctor is considering prescribing Rufinamide (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Ask whether any dosage adjustments are needed
- Never stop or change either medication without first consulting your healthcare provider