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Biaxin (clarithromycin)

Generic (originally Abbott/AbbVie) · FDA-approved approved Small molecule Quality 65/100

Clarithromycin is a macrolide antimicrobial drug.

Clarithromycin (Biaxin) is a macrolide antibiotic approved in 1991, essential for H. pylori eradication therapy. Available generically worldwide.

At a glance

Generic nameclarithromycin
Also known asBiaxin, Klacid
SponsorGeneric (originally Abbott/AbbVie)
Drug classMacrolide Antimicrobial [EPC]
TargetPotassium voltage-gated channel subfamily H member 2
ModalitySmall molecule
Therapeutic areaInfectious Disease
PhaseFDA-approved
First approval1991-10-31 (United States)

Mechanism of action

Clarithromycin is a semi-synthetic macrolide derived from erythromycin with improved acid stability, oral bioavailability, and tissue penetration. It is a key component of H. pylori triple therapy and is also used for respiratory infections, MAC prophylaxis in HIV, and atypical mycobacterial infections.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
FDA labelMechanism, indications, dosing, boxed warnings, drug interactions
ClinicalTrials.govTrial enrolment, design, endpoints, results

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