Clarithromycin and Omeprazole: Drug Interaction Guide

Quick answer: Clarithromycin and Omeprazole have a minor interaction — typically manageable with awareness.

Interaction severity: Minor — typically manageable

How Clarithromycin interacts with Omeprazole

Clarithromycin inhibits CYP3A4-mediated omeprazole metabolism, while omeprazole can alter clarithromycin distribution, modestly increasing exposure to one or both drugs.

What you should do

Routine dose adjustment is generally unnecessary, including during Helicobacter pylori therapy. Monitor for unexpected gastrointestinal or concentration-related adverse effects.

Key facts

Severity

Minor — typically manageable

Mechanism

Clarithromycin inhibits CYP3A4-mediated omeprazole metabolism, while omeprazole can alter clarithromycin distribution, m...

Action

Routine dose adjustment is generally unnecessary, including during Helicobacter pylori therapy. Monitor for unexpected g...

Important medical disclaimer: This page provides educational information about drug interactions for general reference. It is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your specific medications with a qualified healthcare provider before starting, stopping, or changing any treatment. About our editorial team.

Frequently asked questions

Can I take Clarithromycin and Omeprazole together?

Usually yes, with awareness. Routine dose adjustment is generally unnecessary, including during Helicobacter pylori therapy. Monitor for unexpected gastrointestinal or concentration-related adverse effects.

What is the severity of this interaction?

The interaction between Clarithromycin and Omeprazole is classified as Minor — typically manageable. Clarithromycin inhibits CYP3A4-mediated omeprazole metabolism, while omeprazole can alter clarithromycin distribution, modestly increasing exposure to one or both drugs.

What should I do if I'm prescribed both?

Routine dose adjustment is generally unnecessary, including during Helicobacter pylori therapy. Monitor for unexpected gastrointestinal or concentration-related adverse effects. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

Last reviewed: by iMedic Medical Editorial Team. Our editorial process.