Cefprozil Pediatric Dose — Antimicrobial Reference
Cefprozil is a second-generation oral cephalosporin that exerts bactericidal activity by inhibiting bacterial cell wall synthesis. It demonstrates reliable coverage against common gram-positive organisms and selected gram-negative pathogens, making it a useful option for outpatient management of pediatric upper respiratory tract infections, otitis media, and skin and soft tissue infections.
Pediatric Dosing
- Dose: 15 mg/kg/dose PO every 12 hours
- Maximum: 1 g/day
Administer twice daily (every 12 hours). The maximum daily dose of 1 g/day should not be exceeded regardless of weight.
Worked example: For a 20 kg child: 20 × 15 mg/kg = 300 mg per dose, given every 12 hours (600 mg/day total — within the 1 g/day maximum). For a 40 kg child: 40 × 15 mg/kg = 600 mg per dose; however, the daily maximum of 1 g/day applies — consult institutional protocol for dose capping in larger pediatric patients.
Indications and Clinical Context
Cefprozil is indicated for the outpatient treatment of mild-to-moderate bacterial infections in pediatric patients, including acute otitis media, pharyngitis/tonsillitis caused by Streptococcus pyogenes, acute sinusitis, and uncomplicated skin and soft tissue infections. Its oral bioavailability and twice-daily dosing schedule support adherence in the ambulatory setting.
As a second-generation cephalosporin, cefprozil offers broader gram-negative activity compared to first-generation agents while maintaining strong gram-positive coverage. It is not appropriate for severe or invasive infections requiring parenteral therapy, and clinicians should guide selection based on local susceptibility patterns and culture data when available.
Administration and Monitoring
Cefprozil is administered exclusively by the oral (PO) route and is available as a suspension or tablet formulation. It may be taken with or without food; administering with food may reduce gastrointestinal upset. The oral suspension should be refrigerated and shaken well before each use.
- Route: Oral only — no parenteral formulation available
- Frequency: Every 12 hours
- Maximum daily dose: 1 g/day
- Adverse effects to monitor: Diarrhea, nausea, rash, and hypersensitivity reactions; use with caution in patients with a history of cephalosporin or penicillin allergy
- Renal impairment: Dose adjustment may be required in patients with significant renal dysfunction — consult institutional protocol
Disclaimer: This article is an educational reference summarizing standard pediatric dosing values. It is not a substitute for clinical judgment. Always verify doses against institutional protocols, the current edition of authoritative references (e.g., Lexicomp, Harriet Lane Handbook, PALS guidelines), the patient’s accurate weight, and any patient-specific factors (renal/hepatic function, allergies, comedications) before administration.