lamotrigine + olanzapine

Lamotrigine + olanzapine is a combination therapy used primarily for the treatment of bipolar disorder. Lamotrigine is an antiepileptic agent that is also effective in treating bipolar depression, while olanzapine is an atypical antipsychotic that helps manage manic or mixed episodes. When used together, these medications can provide complementary effects for patients with bipolar disorder, though they have a minor pharmacokinetic interaction where olanzapine may moderately decrease lamotrigine plasma concentrations (by approximately 24%). This combination is generally well-tolerated, with the most common adverse events being fatigue, dizziness, and mild transaminase elevations.