Nefazodone and Tranylcypromine interaction

Nefazodone and Tranylcypromine: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Tranylcypromine (Tranylcypromine Sulfate) label · effective 2025-07-25

Major

…reuptake inhibitors (SSRIs) and serotonin and norepinephrine reuptake inhibitors (SNRIs) tricyclic antidepressants other antidepressants, such as amoxapine, bupropion, maprotiline, nefazodone, trazodone, vilazodone, vortioxetine amphetamines and methylphenidates medicines that can raise blood pressure (sympathomimetic medicine), such as pseudoephedrine, phenylephrine…

Boxed warningnames NefazodoneView label on DailyMed
Major

…reuptake inhibitors (SSRIs) and serotonin and norepinephrine reuptake inhibitors (SNRIs) Tricyclic antidepressants Other antidepressants (e.g., amoxapine, bupropion, maprotiline, nefazodone, trazodone, vilazodone, vortioxetine) Amphetamines and methylphenidates and derivatives Sympathomimetic products (e.g., cold, hay fever or weight reducing products that contain…

Contraindicationsnames NefazodoneView label on DailyMed
Major

…selective MAOIs) Selective serotonin reuptake inhibitors (SSRIs) and serotonin and norepinephrine reuptake inhibitors (SNRIs) Tricyclic antidepressants Amoxapine, bupropion, maprotiline, nefazodone, trazodone, vilazodone, vortioxetine Contraindicated a SS for all antidepressants For MAOIs, increased MAO inhibition and risk of adverse reactions, SS, and HR g Amphetamines…

Drug interactionsnames NefazodoneView label on DailyMed
Major

Serotonin Syndrome The development of a potentially life-threatening serotonin syndrome has been reported with MAOIs when used concomitantly with other serotonergic drugs.

Warnings and precautionsby drug classView label on DailyMed
Major

The concomitant use, or use in rapid succession, of tranylcypromine sulfate tablets with other serotonergic drugs is contraindicated.

Warnings and precautionsby drug classView label on DailyMed

From the Nefazodone (Nefazodone Hydrochloride) label · effective 2025-07-31

Major

Anyone considering the use of nefazodone hydrochloride tablets or any other antidepressant in a child, adolescent, or young adult must balance this risk with the clinical need.

Boxed warningby drug classView label on DailyMed
Major

Nefazodone hydrochloride tablets are also contraindicated in patients who have demonstrated hypersensitivity to nefazodone hydrochloride, its inactive ingredients, or other phenylpiperazine antidepressants.

Contraindicationsby drug classView label on DailyMed
Major

Severe hyperthermia and seizures, sometimes fatal, have been reported in association with the combined use of tricyclic antidepressants and MAOIs.

Warningsby drug classView label on DailyMed
Minor

Potential for Interaction with Monoamine Oxidase Inhibitors In patients receiving antidepressants with pharmacological properties similar to nefazodone in combination with a monoamine oxidase inhibitor (MAOI), there have been reports of serious, sometimes fatal, reactions.

Warningsby drug classView label on DailyMed
Minor

These reactions have also been reported in patients who have recently discontinued that drug and have been started on an MAOI.

Warningsby drug classView label on DailyMed

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.