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Vilazodone and Linezolid Interaction

Drug interaction information between Vilazodone and Linezolid.

Vilazodone and Linezolid have a documented major interaction in FDA labeling.

FDA drug labeling documents a major-severity interaction between Vilazodone and Linezolid. 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

Vilazodone

SSRI / 5-HT1A Partial Agonist

Drug B

Linezolid

Oxazolidinone Antibiotic

How They Interact

Both of these drugs increase the amount of serotonin in your brain. Taking them together can cause serotonin levels to become dangerously high, which can be life-threatening.

What To Do

Do not take these two medications together. Your doctor will need to choose a different treatment to avoid a serious reaction.

FDA Label Information

Vilazodone hydrochloride tablets are contraindicated in patients taking MAOIs, including MAOIs such as linezolid or intravenous methylene blue [see Contraindications (4), Dosage and Administration (2.3), and Warnings and Precautions (5.2)].

Frequently Asked Questions

Can I take Vilazodone and Linezolid together?

This is a major interaction. Do not take these two medications together. Your doctor will need to choose a different treatment to avoid a serious reaction.

How serious is the interaction between Vilazodone and Linezolid?

This interaction is classified as "major" severity by the FDA. Major interactions may be life-threatening or cause serious side effects.

Why do Vilazodone and Linezolid interact?

Both of these drugs increase the amount of serotonin in your brain. Taking them together can cause serotonin levels to become dangerously high, which can be life-threatening.

Understanding the Vilazodone and Linezolid Interaction

FDA-approved prescribing information for these two drugs flags their combination as a major-severity interaction. Vilazodone belongs to the SSRI / 5-HT1A Partial Agonist class and Linezolid belongs to the Oxazolidinone Antibiotic class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: Both of these drugs increase the amount of serotonin in your brain. 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. Vilazodone has 10 total documented interactions on file in this dataset, and Linezolid has 29. 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: Do not take these two medications together. 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 Vilazodone or Linezolid 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.