Randomized Trialhigh evidence

Benzylpenicillin versus flucloxacillin or cloxacillin for the treatment of penicillin-susceptible Staphylococcus aureus bacteraemia (SNAP): an international, multicentre, open-label, non-inferiority randomised controlled trial.

Lancet (London, England)·July 11, 2026·PMID 42309115

Why it matters

Penicillin-susceptible S. aureus bacteraemia is increasingly recognized, yet guidelines favor anti-staphylococcal penicillins due to concerns about undetected resistance. This trial provides randomized evidence that benzylpenicillin may offer similar or better survival with less nephrotoxicity, challenging current practice.

Infographic summary of Benzylpenicillin versus flucloxacillin or cloxacillin for the treatment of penicillin-susceptible Staphylococcus aureus bacteraemia (SNAP): an international, multicentre, open-label, non-inferiority randomised controlled trial.
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