How does clarithromycin work?

Clarithromycin works by killing the bacteria that cause whooping cough, pneumonia and other infections (e.g. stomach ulcers).

Clarithromycin prevents the bacterial cell from carrying out essential functions that are necessary for life (i.e. making the protein building blocks that make up the bacterial cell), which stops the bacteria from multiplying.

Find out more about which infections clarithromycin is used for, who can take it, and the side effects and interactions of clarithromycin.

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  • Antibiotic Expert Group. Therapeutic Guidelines: Clarithromycin. Melbourne: Therapeutic Guidelines Limited, 2012 (accessed 27 March 2012).