Divalproex Sodium and Lamotrigine: Interaction Overview

Divalproex Sodium (Depakote) + Lamotrigine (Lamictal)

Severity: Moderate

FDA label language suggests this combination may require monitoring, dose adjustment, or added caution. Make sure every prescriber involved in your care knows you take both.

Basis: Boxed warning of the Lamotrigine FDA label.

What the FDA Label Says

In addition to age, factors that may increase the risk of occurrence or the severity of rash caused by lamotrigine include (1) coadministration of lamotrigine with valproate (includes valproic acid and divalproex sodium), (2) exceeding the recommended initial dose of lamotrigine, (3) exceeding the recommended dose escalation for lamotrigine, or (4) the presence of the HLA-B*1502 allele However, cases have occurred in the absence of these factors.

Excerpt from the FDA prescribing label for Lamotrigine (SPL set ID 003663e5-c0c7-4fc1-a64d-313f2a5b10d2).

About These Medications

  • Divalproex Sodium (Depakote) medication guide — Mood Stabilizer
  • Lamotrigine (Lamictal) medication guide — Anti-epileptic Agent

Check other combinations with our interaction tool →

About this interaction data. These interactions were identified by automatically scanning FDA prescribing-label text for medications in Bridgeway's library. This is not a complete list and is not a substitute for review by your prescriber or pharmacist, who use comprehensive clinical databases. Always share your full medication list with your care team. How we source this data →

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Not medical advice. This page summarizes publicly available FDA drug labeling alongside general guidance from Bridgeway Integrated Healthcare Services. It is for educational purposes only and is not a substitute for advice from your prescriber or pharmacist. Never start, stop, or change a medication without talking to your healthcare provider. In an emergency, call 911.