Cefixime vs Cefuroxime for Bacterial Pharyngitis
First-line Treatment Options
- The Infectious Diseases Society of America recommends penicillin or amoxicillin as the treatment of choice for Group A Streptococcus (GAS) pharyngitis due to proven efficacy, safety, narrow spectrum, and low cost 2, 3
- Penicillin-resistant GAS has never been documented, making penicillin a reliable option 2
- Amoxicillin once daily (50 mg/kg, maximum 1000 mg) for 10 days is equally effective as other regimens and may enhance adherence due to once-daily dosing 2
For Penicillin-Allergic Patients
- The American Academy of Pediatrics and the Infectious Diseases Society of America recommend a 10-day course of an oral cephalosporin for most penicillin-allergic individuals (except those with immediate/anaphylactic hypersensitivity) 4
- Narrow-spectrum cephalosporins (cefadroxil, cephalexin) are preferred over broad-spectrum cephalosporins (cefaclor, cefuroxime, cefixime, cefdinir, cefpodoxime) due to their narrower antimicrobial spectrum and lower risk of selecting for antibiotic-resistant flora 4, 5
- Broad-spectrum cephalosporins like cefixime and cefuroxime are more likely to select for antibiotic-resistant flora and have unnecessarily broad antimicrobial spectrum 1, 4
Important Considerations
- Up to 10% of penicillin-allergic persons are also allergic to cephalosporins, and these agents should not be used in patients with immediate (anaphylactic-type) hypersensitivity to penicillin 4, 5
- For patients with true penicillin allergy who cannot take cephalosporins, alternatives include clindamycin (resistance rate approximately 1% in the US) and macrolides (erythromycin, clarithromycin) or azithromycin, though macrolide resistance rates in the US are around 5-8% 4, 5, 6