Linezolid and Nefazodone interaction

Linezolid and Nefazodone: 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 Nefazodone (Nefazodone Hydrochloride) label · effective 2025-07-31

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
Minor

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

Warningsby drug classView label on DailyMed
Minor

Although the effects of combined use of nefazodone and MAOI have not been evaluated in humans or animals, because nefazodone is an inhibitor of both serotonin and norepinephrine reuptake, it is recommended that nefazodone not be used in combination with an MAOI, or within 14 days of discontinuing treatment with an MAOI.

Warningsby drug classView label on DailyMed

From the Linezolid label · effective 2026-06-19

Minor

Commonly used serotonergic agents include serotonin reuptake inhibitors, serotonin-norepinephrine reuptake inhibitors, tricyclic antidepressants, buspirone, serotonin 5-HT1 receptor agonists (triptans), and opioids, including meperidine.

Warnings and precautionsby 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.