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Alprazolam and Clarithromycin Interaction

Drug interaction information between Alprazolam and Clarithromycin.

Alprazolam and Clarithromycin have a documented moderate interaction in FDA labeling.

FDA drug labeling documents a moderate-severity interaction between Alprazolam 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

Alprazolam

Benzodiazepine

Drug B

Clarithromycin

Macrolide Antibiotic

How They Interact

Clarithromycin interferes with the liver's ability to clear alprazolam, which may make the alprazolam stay in your system longer.

What To Do

Watch for increased side effects and check with your doctor to see if your alprazolam dose needs to be changed.

FDA Label Information

Examples Ketoconazole, itraconazole, clarithromycin Moderate or Weak Inhibitors of CYP3A Clinical implication Concomitant use of alprazolam with CYP3A inhibitors may increase the concentrations of alprazolam, resulting in increased risk of adverse reactions of alprazolam [see Clinical Pharmacology (12.3) ].

Alprazolam Also Interacts With

View all Alprazolam interactions →

Frequently Asked Questions

Can I take Alprazolam and Clarithromycin together?

This is a moderate interaction. Watch for increased side effects and check with your doctor to see if your alprazolam dose needs to be changed.

How serious is the interaction between Alprazolam and Clarithromycin?

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

Why do Alprazolam and Clarithromycin interact?

Clarithromycin interferes with the liver's ability to clear alprazolam, which may make the alprazolam stay in your system longer.

Understanding the Alprazolam and Clarithromycin Interaction

FDA-approved prescribing information for these two drugs flags their combination as a moderate-severity interaction. Alprazolam belongs to the Benzodiazepine 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 interferes with the liver's ability to clear alprazolam, which may make the alprazolam stay in your system longer. 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. Alprazolam has 27 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: Watch for increased side effects and check with your doctor to see if your alprazolam dose needs to be changed. 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 Alprazolam 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.