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Clarithromycin

Clarithromycin is a macrolide antibiotic used for selected susceptible bacterial infections. It strongly affects the metabolism of several medicines and can prolong the QT interval.

Biaxin

Bacterial Infection

250 · 500mg

Clarithromycin 250mg and 500mg film-coated tablets, used for bacterial infection. A macrolide that binds bacterial ribosomes and halts protein synthesis.

From$2.04/ tabletView

Key points

  • Clarithromycin has clinically important interactions with some statins, anticoagulants, heart medicines and other treatments.
  • Fainting or a new irregular heartbeat can indicate a serious rhythm problem.
  • Severe or persistent watery or bloody diarrhoea can occur during or after treatment and needs prompt care.

Listings are for comparison only; suitability and supply depend on infection, susceptibility, prescription, interaction and pharmacy checks.

What clarithromycin is used for

Clarithromycin may be used for selected bacterial infections, including some respiratory or skin infections, and within specific combination regimens.

How it works

Clarithromycin inhibits bacterial protein synthesis. It should not be used for viral symptoms or when resistance makes it unsuitable.

Important safety checks

Review QT prolongation, fainting, slow pulse, low potassium or magnesium, liver or kidney disease, myasthenia gravis, pregnancy and every current medicine. Do not assume a regular medicine is compatible.

When to seek urgent care

Seek urgent help for fainting, a new irregular heartbeat, yellow skin or eyes, facial swelling, breathing difficulty, blistering skin or severe or bloody diarrhoea.

Further reading