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Medicines fidaxomicinQuestion & answer

fidaxomicin · Medicine question

How does fidaxomicin kill C. difficile bacteria?

iatroX medicinesPublished 8 November 2026

The answer

Answer

Fidaxomicin kills C. difficile bacteria by inhibiting RNA synthesis through interference with bacterial RNA polymerase.

Sources for this answer

Fidaxomicin 200mg film-coated tabletsTillotts Pharma UK Limited · emc · SmPC §5.1 Pharmacodynamic properties · Version 3Document updated 9 January 2023

Sources checked 8 November 2026

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fidaxomicin

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Do the Tillotts Pharma UK Limited fidaxomicin 200 mg film-coated tablets contain soy lecithin?How should the Tillotts Pharma UK Limited fidaxomicin 40 mg/ml oral suspension be stored after reconstitution?Is it known whether fidaxomicin passes into human breast milk?What are the most common side effects of fidaxomicin?What infection are fidaxomicin film-coated tablets used to treat in adults and children weighing at least 12.5 kg?Why is fidaxomicin preferably avoided during pregnancy?

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