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Mirtazapine and Tranylcypromine Interaction

Drug interaction information between Mirtazapine and Tranylcypromine.

Mirtazapine and Tranylcypromine have a documented moderate interaction in FDA labeling.

FDA drug labeling documents a moderate-severity interaction between Mirtazapine and Tranylcypromine. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.

Drug A

Mirtazapine

Noradrenergic and Specific Serotonergic Antidepressant (NaSSA)

Drug B

Tranylcypromine

Monoamine Oxidase Inhibitor (MAOI)

How They Interact

These drugs both work by raising serotonin levels in your system. Using them at the same time increases the risk of a serious condition called serotonin syndrome.

What To Do

Avoid this combination and talk to your doctor about safer treatment options.

FDA Label Information

Examples selegiline, tranylcypromine, isocarboxazid, phenelzine, linezolid, methylene blue Other Serotonergic Drugs Clinical Impact The concomitant use of serotonergic drugs with mirtazapine increases the risk of serotonin syndrome.

Mirtazapine Also Interacts With

View all Mirtazapine interactions →

Frequently Asked Questions

Can I take Mirtazapine and Tranylcypromine together?

This is a moderate interaction. Avoid this combination and talk to your doctor about safer treatment options.

How serious is the interaction between Mirtazapine and Tranylcypromine?

This interaction is classified as "moderate" severity by the FDA. Moderate interactions may worsen your condition or change how your medications work.

Why do Mirtazapine and Tranylcypromine interact?

These drugs both work by raising serotonin levels in your system. Using them at the same time increases the risk of a serious condition called serotonin syndrome.

Understanding the Mirtazapine and Tranylcypromine Interaction

FDA-approved prescribing information for these two drugs flags their combination as a moderate-severity interaction. Mirtazapine belongs to the Noradrenergic and Specific Serotonergic Antidepressant (NaSSA) class and Tranylcypromine belongs to the Monoamine Oxidase Inhibitor (MAOI) class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: These drugs both work by raising serotonin levels in your system. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.

Context around a specific patient determines real-world impact. Mirtazapine has 29 total documented interactions on file in this dataset, and Tranylcypromine has 42. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: Avoid this combination and talk to your doctor about safer treatment options. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.

An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Mirtazapine or Tranylcypromine based on a web page, speak with your prescriber or pharmacist before making any change.

Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.