Nortriptyline and Selegiline: interaction and safety
This source-based reference is not a personal treatment recommendation. The relevance and management of an interaction depend on the exact products, route, dose and clinical situation.
Interaction mechanism
Combining MAO inhibition with antidepressant treatment can cause severe CNS and circulatory reactions, including serotonin syndrome with serotonergic agents. MAO inhibition combined with a tricyclic antidepressant can cause serotonin syndrome and severe toxicity.
Clinical significance and safety
Nortriptyline and Selegiline: Combining MAO inhibition with antidepressant treatment can cause severe CNS and circulatory reactions, including serotonin syndrome with serotonergic agents. MAO inhibition combined with a tricyclic antidepressant can cause serotonin syndrome and severe toxicity. The cited oral selegiline information prohibits concomitant antidepressant treatment. Waiting intervals vary by product; fluoxetine requires particular attention because its effects persist for a long time. Urgent assessment is needed for a new combination of agitation or confusion, fever, marked sweating, tremor or abnormal muscle movements. The warning does not provide a pair-specific incidence or establish that toxicity is inevitable. MAOI contraindications and product-specific waiting intervals must be checked before co-treatment or switching; a patient should not plan a washout or abruptly stop regular treatment without the treating team.
Using this information
This is a source-based reference record, not a recommendation to combine, stop or change medicines. A missing interaction record does not establish safe use. A qualified healthcare professional should consider the exact products, doses, other medicines and individual health circumstances.