Cefuroxime

Cefuroxime is a second-generation cephalosporin antibiotic that kills susceptible bacteria by disrupting cell-wall synthesis. It is available in oral and injectable forms.

Penicillin-binding proteins: Bacterial enzymes that build and remodel peptidoglycan in the cell wall. Cefuroxime binds these enzymes, preventing the cross-linking needed for a stable bacterial wall.
Cefuroxime axetil: An orally absorbed prodrug that is converted in the body to cefuroxime. This formulation makes cefuroxime available as tablets and oral suspension.
Cefazolin: A first-generation cephalosporin antibiotic commonly used for surgical prophylaxis and susceptible infections. Cefazolin generally has stronger activity against many gram-positive bacteria, while cefuroxime covers more selected gram-negative species.
Antibiotic-associated diarrhea: Loose or frequent stools occurring during or after antibiotic treatment. Cefuroxime can disrupt normal gut bacteria and cause diarrhea.
Peptidoglycan: A mesh-like polymer of sugars and peptides that provides structural strength to most bacterial cell walls. Cefuroxime weakens bacteria by interrupting construction of this wall material.
Cefuroxime sodium: The water-soluble sodium salt of cefuroxime used for injection. This formulation is used when parenteral treatment is needed.
Ceftriaxone: A third-generation cephalosporin antibiotic given by injection and active against a range of gram-negative bacteria. Ceftriaxone has broader activity against many gram-negative organisms and a longer half-life than cefuroxime.
Clostridioides difficile infection: A toxin-mediated intestinal infection that can follow disruption of the gut microbiome by antibiotics. Cefuroxime exposure can increase risk, as with other broad-spectrum antibiotics.
Beta-lactam antibiotics: A family of antibiotics whose shared beta-lactam ring targets bacterial cell-wall synthesis. Cefuroxime belongs to this broad drug family.
Community-acquired pneumonia: Pneumonia acquired outside hospitals or long-term care settings. Cefuroxime may be used for susceptible causes, depending on severity and local guidance.

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