Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/22/2025

Lamotrigine for Mood Stabilization in Bipolar Depression

Efficacy in Bipolar Depression

  • The American Academy of Child and Adolescent Psychiatry recommends lamotrigine for maintenance therapy in adults with bipolar disorder, particularly effective for preventing depressive episodes, making it an excellent choice for bipolar depression where depressive episodes predominate 1, 2

Clinical Applications and Recommendations

  • Lamotrigine is suitable for maintenance treatment in bipolar I disorder, as recommended by the American Academy of Child and Adolescent Psychiatry 1, 2
  • In moderate to severe bipolar depression, lamotrigine may be used with an antidepressant, but the antidepressant should always be combined with a mood stabilizer to prevent switching to mania, as suggested by the American Academy of Child and Adolescent Psychiatry 3

Important Considerations

  • When treating bipolar depression, avoid using antidepressants without mood stabilizers as they may trigger manic episodes, according to the American Academy of Child and Adolescent Psychiatry 3
  • Maintenance treatment for bipolar disorder should continue for at least 2 years after the last episode, as recommended by the National Institute of Mental Health 4, 5