Cephalexin
Cephalosporin (1st-Generation)- Drug Class
- Cephalosporin (1st-Generation)
- Mechanism of Action (MOA)
- β-lactam: inhibits PBPs → impairs cell-wall synthesis.
- Clinical Notes
- Gram-positive (skin/soft tissue, MSSA, strep) plus some gram-negative (UTI). ~1–3% cross-reactivity with penicillin allergy.
- Source
- FDA label
Sources
Reviewed September 2026- FDA label — FDA / DailyMed
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