If beta-lactam allergy is present in CAP, which is an appropriate alternative?

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Multiple Choice

If beta-lactam allergy is present in CAP, which is an appropriate alternative?

Explanation:
In CAP, when a patient has a beta-lactam allergy, you look for an antibiotic that covers the usual lung pathogens but is not a beta-lactam. Lefamulin fits this role because it is a non-beta-lactam antibiotic (a pleuromutilin) with activity against common CAP organisms, including Streptococcus pneumoniae, Haemophilus influenzae, and atypical pathogens like Mycoplasma and Chlamydophila. It can be given orally or by IV, making it versatile for initial treatment or step-down therapy. The other options are all beta-lactams (amoxicillin, amoxicillin-clavulanate, and ceftriaxone), which are generally avoided in beta-lactam allergy unless a specific, low-risk history and specialist guidance permit otherwise, so they are not suitable alternatives in this scenario.

In CAP, when a patient has a beta-lactam allergy, you look for an antibiotic that covers the usual lung pathogens but is not a beta-lactam. Lefamulin fits this role because it is a non-beta-lactam antibiotic (a pleuromutilin) with activity against common CAP organisms, including Streptococcus pneumoniae, Haemophilus influenzae, and atypical pathogens like Mycoplasma and Chlamydophila. It can be given orally or by IV, making it versatile for initial treatment or step-down therapy. The other options are all beta-lactams (amoxicillin, amoxicillin-clavulanate, and ceftriaxone), which are generally avoided in beta-lactam allergy unless a specific, low-risk history and specialist guidance permit otherwise, so they are not suitable alternatives in this scenario.

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