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Vilazodone and Clarithromycin Interaction

Drug interaction information between Vilazodone and Clarithromycin.

Vilazodone and Clarithromycin have a documented minor interaction in FDA labeling.

FDA drug labeling documents a minor-severity interaction between Vilazodone and Clarithromycin. 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

Clarithromycin

Macrolide Antibiotic

How They Interact

Clarithromycin slows down the liver enzymes that break down vilazodone. This causes the amount of vilazodone in your blood to rise, which could increase the risk of side effects.

What To Do

Your doctor may need to lower your dose of vilazodone. Watch closely for any new or worsening side effects.

FDA Label Information

Strong CYP3A4 Inhibitors (e.g., itraconazole, clarithromycin, voriconazole) The concomitant use of vilazodone hydrochloride tablets and strong CYP3A4 inhibitors increased the exposure of vilazodone compared to the use of vilazodone hydrochloride tablets alone [see Clinical Pharmacology (12.3)].

Frequently Asked Questions

Can I take Vilazodone and Clarithromycin together?

This is a minor interaction. Your doctor may need to lower your dose of vilazodone. Watch closely for any new or worsening side effects.

How serious is the interaction between Vilazodone and Clarithromycin?

This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.

Why do Vilazodone and Clarithromycin interact?

Clarithromycin slows down the liver enzymes that break down vilazodone. This causes the amount of vilazodone in your blood to rise, which could increase the risk of side effects.

Understanding the Vilazodone and Clarithromycin Interaction

FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Vilazodone belongs to the SSRI / 5-HT1A Partial Agonist class and Clarithromycin belongs to the Macrolide Antibiotic class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: Clarithromycin slows down the liver enzymes that break down vilazodone. 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 Clarithromycin has 81. 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: Your doctor may need to lower your dose of vilazodone. 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 Clarithromycin 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.