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First-Generation Cephalosporin

Cefazolin (Perioperative Burns)

Brand names: Kefzol

Cefazolin is a first-generation intravenous cephalosporin used for surgical antibiotic prophylaxis around burns operations such as excision and grafting.

Dosing — being independently re-sourced

ClinCalc Pro is rebuilding its dose data from primary open sources — the manufacturer SmPC (eMC), the WHO Model Formulary and other official references — under clinician review. This drug's structured dose is not yet published here. Confirm all doses against the product SmPC and your local formulary before prescribing.

Clinical monograph

How it works

It binds penicillin-binding proteins to inhibit bacterial cell-wall peptidoglycan synthesis, giving reliable activity against staphylococci and streptococci that cause surgical-site infection.

Prescribing in practice

  • Avoid in patients with a history of severe or immediate hypersensitivity to penicillins or cephalosporins, and use caution with any prior beta-lactam allergy.
  • For prophylaxis it should be given so that adequate tissue concentrations are present at incision, with intra-operative re-dosing for prolonged procedures or major blood loss.
  • Burns patients have altered, often increased, drug clearance and a large volume of distribution, so standard prophylactic exposure may be inadequate.

Monitoring

Monitor for hypersensitivity reactions and for surgical-site infection in the postoperative period.

Counselling the patient

  • This antibiotic is given to lower the chance of wound infection around your operation.
  • Tell the team about any previous reaction to penicillin or cephalosporin antibiotics.

Evidence & guidelines

Cefazolin is a guideline-recommended agent for surgical prophylaxis against skin-flora organisms across many procedure types.

Reference: NICE NG125; ASHP antimicrobial prophylaxis guidelines; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. Monograph status: clinician-reviewed (2026-07-04).

Related

Curated clinical cross-links plus same-class fallbacks.